NEW YORK - JUNE 27:  Fans of pop star Michael Jackson, Alex Demers (C,  in yellow) and Jimmy Maize (C, in black) dance with others during a "flash mob" performance of the Jackson song "Thriller" on June 27, 2009 in New York City. The gathering, informally organized on the social networking website Twitter, brought dozens of Michael Jackson fans out, some in the signature make up of the hit song's video, to dance and remember the pop star, who died this week in Los Angeles at 50. Getty Images logo Getty Images 5 months ago

NEW YORK - JUNE 27: Fans of pop star Michael Jackson, Alex Demers (C, in yellow) and Jimmy Maize (C, in black) dance with others during a "flash mob" performance of the Jackson song "Thriller" on June 27, 2009 in New York City. The gathering, informally organized on the social networking website Twitter, brought dozens of Michael Jackson fans out, some in the signature make up of the hit song's video, to dance and remember the pop star, who died this week in Los Angeles at 50.