Lupe Fiasco just performed at American University in Washington D.C. tonight. Before finishing his set, he gave the fans a preview of the first single off his upcoming album, Tetsuo & Youth. The song is called "Crack," and it features Chris Brown. Lupe played his first verse and Brown's hook for the audience, which received the song favorably.

It's apparent from the video above that the song has a heavy dubstep sound. It also sounds like Lupe is going for the charts on this one, especially with the big hook courtesy Brown. Is this the direction Lupe plans on going for his fifth studio album? As of now, neither "Crack" nor Tetsuo & Youth have a release date, but with the album expected in the next few months, there should be an announcement soon.

[via HHNM]

RELATED: Listen: Lupe Fiasco "SLR 3 (Round Of Applause)"
RELATED: Lupe Fiasco's 10 Realest Moments