Adam "MCA" Yauch of the Beastie Boys has been diagnosed with cancer and will undergo surgery. The cancer was found in Yauch's left salivary gland. The band's plans for a summer tour and the release of their new album, "Hot Sauce Committee Part 1" have been delayed indefinitely. Watch an official statement from Yauch below.

Yauch is optimistic on his chances at making a full recovery. "I'm actually going to have to have surgery probably next week, coming up, and then after that have to have some radiation done," Yauch says. "But the good news is that they did scans of my whole body and it's only localized in this one area, and it's not in a place that affects my voice."

"It's a little bit of a setback, it's a pain in the ass, but this is something that's very treatable," he adds. The Beastie Boys had planned for a busy summer, including headlining slots at many of the major festivals in the United States - Lollapalooza, All Points West, Outside lands and Austin City Limits - as well as a September date at the Hollywood Bowl. The group performed at the Bonnaroo Festival in Manchester, Tenn. last month.

"I apologize to everybody, for anyone who's made plans or was psyched to come to these shows that are coming up," says Yauch. "We'll be back doing this soon." "Hot Sauce Committee Part 1," the group's eighth album, was originally scheduled for release on Sept. 15. The set will include 17 tracks, including "Dont Play No Game That I Cant Win" featuring Santigold and "Too Many Rappers" featuring Nas.

EMI, the group's label, issued the following statement: "Our thoughts, love and prayers are with Adam Yauch, his family and the Beastie Boys. The most important thing is to allow Adam to focus on staying healthy. We wish him all the best and a speedy recovery."