Alicia Keys wore a Barack Obama tee for her performance at the Keep A Child Alive Black Ball, and now she's hoping to use it to raise even more money for charity by auctioning it off.

The singer is also putting the Rock and Republic jeans from the performance and a signed set sheet up for auction. After all, she is the co-founder of 'Keep A Child Alive,' so she certainly wants to see as many funds go toward the charity as possible.

Keep A Child Alive is a response to the AIDS epidemic in Africa, providing anti-retroviral treatments, doctors, nourishment, and education, and helping to sustain orphanages that take in the AIDS orphans with nowhere else to go. If you're interested (and get there RIGHT NOW) you can place a bid. Hurry, there's only half an hour left!