Lady Gaga and Usher are ready to jam for a good cause.
The music greats are set to come together Saturday to celebrate former President Bill Clinton and the 10th anniversary of his Clinton Foundation at a concert at the Hollywood Bowl.
Highlighting Clinton's efforts to protect the environment, promote healthier living and stimulate the economy, the Decade of Difference concert will be streamed live only on Yahoo.com starting at 7 p.m. (EST) on Saturday.
Kenny Chesney, Juanes, K'Naan and XX are also on the bill for the one night only event, which will also feature an acoustic set by The Edge and Bono.
To check out A Decade of Difference: A Concert Celebrating 10 Years of the William J. Clinton Foundation, visit Yahoo.com on Saturday.