Michael Jackson 'This Is It' Crew Sues Promoter Over Dr. Murray

Michael Amir Williams claims in his lawsuit, obtained by TMZ ... AEG agreed to pay MJ's staff up to $7.5 million for their services connected with the tour ... a tour that didn't take place because Dr. Conrad Murray pumped the singer with a fatal dose of Propofol.

Williams alleges AEG messed up by failing to act responsibly by hiring Murray and then failing to properly manage or supervise him.