The big rumor swirling around SXSW Wednesday was that Kanye West would be among the surprise superstars "dropping in" at the festival. Now the Chicago superstar has confirmed to the Associated Press that he'll be performing, though he hasn't said where or when.

Odds are it's at a corporate party venue called the Fader Fort on Saturday night.

As for other big names, a "surprise" gig by Metallica is one of the worst kept secrets here (the band is in town to hype a new edition of the Rock Band video game) and Big Boi, half of the hip-hop duo OutKast, said to be showcasing songs from a forthcoming solo album.