U2 cancels American tour, Glastonbury Fest. Bono needs rehab

u2-bono.jpgBad news for U2 fans.

Bono's serious back problem and resulting surgery has forced U2 to postpone their summer American tour. The band also canceled its appearance at the Glastonbury music festival. 

"I'm heartbroken," Bono explains on the U2.com website.  "We really wanted to be there to do something really special -- we even wrote a song especially for the Festival."