Remember all the buzz about Michael Jackson making his big comeback by performing "Thriller" at the World Music Awards? It was a bust.

Rather than sing his 1983 classic as previously announced at last night's show in London, Jackson instead chose to sing the chorus from "We Are The World" -- yes, our pick for worst song of the 80s -- with a choir of children surrounding him. (Creepy!) When Jackson reached for but failed to find the high notes, the song ended abruptly, leaving the crowd and critics baffled.

"It was enough to make you cry. And not in a good way," one review in a London newspaper said.

One media outlet even reported that Jacko was booed off the stage. Not a good payoff for the World Music Awards organizers, who had to supply a private jet, 20 first-class plane tickets and reserve an entire hotel to accommodate the former star.