KTNV Channel 13 in Las Vegas reported on their evening news broadcast of August 25th 1998, that Michael attended the show ‘Legends in Concert’ at the Imperial Palace to see a friend of his perform – William Bostik – who is also a Michael Jackson lookalike.
Michael also joined William on stage to perform part of a dance number. Quite a treat for the unsuspecting audience members.
Source: MJWN

