October 4, 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 Kristanna Loken Kristen Bell Kristin Cavallari Kristin Kreuk Kristy Swanson