November 11, 2010 Photos | Mariah Carey, Usher, More Stars Scheduled To Appear At Michael Jackson's Memorial Edit Delete Tags Autopost Mariah Carey, Usher, More Stars Scheduled To Appear At Michael Jackson's Memorial Related Artists Usher Mariah Carey John Mayer Stevie Wonder Jennifer Hudson Source: http://www.mtv.com/photos/?fid=1615356Amber Heard Amber Valletta America Ferrera Amerie Amy Cobb