(AP) - U.S. photographer Ebet Roberts poses for a photo in front of her newly inaugurated exhibit at Mexico City's Auditorio Nacional, Friday Feb. 10, 2012. The exhibit titled, 'Los Destellos del Sonido' or 'Flashes of Sound,' Friday, encompasses 35 years of Roberts' work of photographing musicians and singers that include Michael Jackson, Bono of U2, Madonna, Iggy Pop and the late reggae artist Bob Marley. (AP Photo/Eduardo Verdugo)

(AP) - A man dressed as the late singer Michael Jackson, center, jokes with others wearing police costumes at the Banda de Ipanema carnival parade in Rio de Janeiro, Brazil, Saturday, Feb. 4, 2012. People gathered Saturday for one of many parades happening before the famed 'Carnival' which runs this year from Feb. 17 to 21. (AP Photo/Silvia Izquierdo)

(AP) - From left to right, Blanket Jackson, Paris Jackson, and Prince Michael Jackson pose with a Cirque Du Soleil performer at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Rihanna arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - From left to right, Blanket Jackson, Paris Jackson, and Prince Michael Jackson arrive at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Rihanna arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Actor and comedian Chris Tucker arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Comedian and actor Cedric The Entertainer arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer and actress Brandy Norwood arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer and actress Brandy Norwood arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer and actress Brandy Norwood, left, and her daughter Sy'rai Smith arrive at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Tito Jackson, left, and singer Jackie Jackson arrive at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Jackie Jackson arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Tito Jackson arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Singer Tito Jackson, left, singer Jackie Jackson, right, and tour director and writer Jamie King arrive at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Perez Hilton arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(AP) - Director Kenny Ortega arrives at the opening night of the Michael Jackson The Immortal World Tour in Los Angeles on Friday, Jan. 27, 2012. (AP Photo/Dan Steinberg)

(Reuters) - Singer Michael Jackson is immortalized in a ceremony where his children Prince, Blanket and Paris use Jackson's shoes and gloves to make hand and foot imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - Paris Jackson places a glove worn by her father, Michael Jackson, into the cement during the hand and footprint ceremony honoring her father in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(Reuters) - Singer Michael Jackson is immortalized in a ceremony where his children (L-R) Prince, Blanket and Paris use Jackson's shoes and gloves and their own hands to make imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - Tito, left, and Jackie Jackson hand and footprint ceremony honoring their brother, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(Reuters) - Singer Michael Jackson is immortalized in a ceremony where his children (L-R) Prince, Blanket and Paris use Jackson's shoes and gloves to make hand and foot imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(Reuters) - Singer Michael Jackson is immortalized in a ceremony where his children (L-R) Prince, Blanket and Paris use Jackson's shoes and gloves and their own hands to make imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - Justin Bieber, right, and Paris Jackson pose together after the hand and footprint ceremony honoring her father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Prince, left, and Blanket, center, place shoes worn by their father, Michael Jackson, into the cement as Paris Jackson looks on during the hand and footprint ceremony honoring their father in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Paris Jackson places a glove worn by her father, Michael Jackson, into the cement as Prince, left, and Blanket Jackson look on during the hand and footprint ceremony honoring their father in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(Reuters) - Singer Michael Jackson is immortalized in a ceremony where his children (L-R) Prince, Blanket and Paris use Jackson's shoes and gloves to make hand and foot imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - Friends and family of musician Michael Jackson pose together after the hand and footprint ceremony honoring him in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Paris, right, Prince, left, and Blanket Jackson put their hands in cement during the hand and footprint ceremony honoring their father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - From left, Prince Jackson, Blanket Jackson, Paris Jackson, Justin Bieber, and Katherine Jackson pose together after the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Paris Jackson, center, writes her fathers name in cement as her brother, Prince, left, and Blanket Jackson look on during the hand and footprint ceremony honoring their father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Choreographer Debbie Allen walks onstage during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Katherine, right, Tito, left, and Jackie Jackson walk onstage before the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Actor Chris Tucker speaks during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Dancers perform during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Musician Melanie Fiona performs during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Music producer Quincy Jones speaks during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Musician Smokey Robinson speaks during the hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Katherine Jackson speaks during a hand and footprint ceremony honoring her son, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Prince, left, Blanket, center, and Paris Jackson are seen onstage during the hand and footprint ceremony honoring their father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(Reuters) - Michael Jackson's children (L-R) Blanket, Paris, Prince and his mother Kathleen attend a ceremony where the singer is immortalized by placing hand and foot imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(Reuters) - Michael Jackson's daughter Paris (L) and mother Kathleen attend a ceremony where the singer is immortalized by placing hand and foot imprints in cement in the courtyard of Hollywood's Grauman's Chinese Theatre in Los Angeles on January 26, 2012. REUTERS/Phil McCarten (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - Paris Jackson speaks during a hand and footprint ceremony honoring her father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Paris Jackson speaks during a hand and footprint ceremony honoring her father, musician Michael Jackson, in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - Musician Justin Bieber sings during a hand and footprint ceremony honoring musician Michael Jackson in front of Grauman's Chinese Theatre in Los Angeles, Thursday, Jan. 26, 2012. The ceremony was held to celebrate the 'Michael Jackson The Immortal World Tour' by Cirque du Soleil. (AP Photo/Matt Sayles)

(AP) - FILE - This Oct. 3, 2011 file photo shows Dr. Conrad Murray listening to testimony during Murray's trial in the death of pop star Michael Jackson in Los Angeles. A restitution hearing for Murray has been canceled after prosecutors told a judge Wednesday that the singer's family was not interested in seeking restitution. (AP Photo/Mario Anzuoni, Pool)

(Getty) - In this file photo, singer Michael Jackson walks with his daughter, Paris, as they visit Harrods, October 12, 2005 in London, England. (Dave M. Benett/Getty Images)

(Getty) - In this file photo, singer Michael Jackson (C) walks with his children, Prince and Paris, as they visit Harrods October 12, 2005, in London, England. (Dave M. Benett/Getty Images)

(WireImage) - Michael Jackson and Britney Spears
MTV Video Music Awards
New York City - 8/29/2002
Photo: Kevin Mazur/Wireimage.com

(WireImage) - Britney Spears and Michael Jackson
MTV Video Music Awards
New York City - 8/29/2002
Photo: Kevin Mazur/Wireimage.com