
In this Jan. 24, 1993 file photo, singer Michael Jackson and American Music Awards executive producer Dick Clark go over the script during rehearsals for The American Music Awards at the Shrine Auditorium in Los Angeles. Clark, the television host who helped bring rock `n' roll into the mainstream on "American Bandstand," died Wednesday, April 18, 2012 of a heart attack. He was 82. (AP Photo/file)

** FILE ** In this Jan. 24, 1993, file photo, singer Michael Jackson and American Music Awards executive producer Dick Clark go over the script during rehearsals for the American Music Awards at the Shrine Auditorium in Los Angeles. (AP Photo/file)

FILE - In this Nov. 18, 2007 file photo, singer Beyonce Knowles hugs her father Mathew Knowles after being named the recipient of the International Star of the Year Award at the American Music Awards in Los Angeles. In a statement released by her publicist on Monday, March 28, 2011, Beyonce announced that she and her father have parted ways "on a business level." Mathew Knowles has managed his daughter since she debuted as a teen in the multiplatinum-selling group Destiny's Child in the late 1990s and throughout her superstar career as a solo artist. (AP Photo/Mark J. Terrill, file)

FILE - In this Nov. 25, 2009 file photo, singer Adam Lambert discusses his controversial "American Music Awards" appearance during an interview on CBS News' "The Early Show" in New York, (AP Photo/Charles Sykes, File)