Lance Armstrong apologized to his charity, Livestrong, on Monday.

Armstrong and his charity were thrown into controversy after the U.S Anti-Doping Agency found evidence of the seven time Tour De France winner's wrongdoing.

Armstrong cut ties with Livestrong, a charity he founded for cancer awareness,  in October.

He is scheduled to interview with Oprah on Monday. The interview will air on Thursday.

Update - Armstrong has reportedly confessed to Oprah about using performance-enhancing drugs to win the Tour De France.

Watch of a preview of Oprah's interview ( below) :