From left, Jennifer Hudson, Celine Dion, Smokey Robinson, Usher and Carrie Underwood perform during a tribute in honor of Michael Jackson at the Grammy Awards on Sunday, Jan. 31, 2010, in Los Angeles.
Michael Jackson's children Paris, left, and Prince Michael Jackson accept the Lifetime Achievement award on behalf of their father at the Grammy Awards on Sunday, Jan. 31, 2010, in Los Angeles.
Rihanna, left, and Jay-Z accept the award for the Best Rap/Sung collaboration for "Run This Town" at the Grammy Awards on Sunday, Jan. 31, 2010, in Los Angeles.
