Mariah @ Micheal's Memorial !!

Michael Jackson's memorial service is set for Tuesday, July 7 at the Staples Center in Los Angeles, California. Jesse Jackson and Al Sharpton are among expected speakers, and Jennifer Hudson is a confirmed guest. Producers also are considering appearances by Lionel Richie, Mariah Carey and Alicia Keys, according to a source involved in the arrangements who wasn't authorized to speak publicly.

NBC, ABC, Fox, CNN, Fox News, MSNBC, E! and TV Guide Channel will provide live coverage of the service at 1 p.m. ET/10 a.m. PT.