have announced that their upcoming tour and album Hot Sauce Committee Part 1 have been postponed indefinitely, after a cancerous tumor was found in group member Adam “MCA” Yauch.

Representatives for the group told AllHipHop.com that a cancerous tumor was found in Yauch’s left parotid (salivary) gland.

Luckily, the tumor was caught early and is localized to one area, but the treatable tumor will require surgery and several weeks of treatment.

Also, reps said the tumor was in an area that would not impact Yauch’s vocal cords.

“Our thoughts, love and prayers are with Adam Yauch, his family and the Beastie Boys,” representatives for the group’s label, EMI told AllHipHop.com in statement. “The most important thing is to allow Adam to focus on staying healthy. We wish him all the best and a speedy recovery.”

For more on this story go to Allhiphop.com.