For the past six months, founding member Gregg Allman has been receiving scheduled treatments for Hepatitis C, a virus that, with these treatments, has become curable in recent years. The treatments so far have been successful and the virus has been eradicated from his system.

However, the recovery time from the side effects of the treatment are taking longer than originally projected. Since the Allman Brothers Band are known for exhilarating and exhausting concert performances they don’t want to give fans anything less than they have come to expect; so the band members made a group decision to delay the first round of dates. “I’m getting better but I’m still tired,” says Gregg. “I need to be at 110% to do the shows the way we do them. I can’t tell you how much I appreciate the support and understanding my Brothers and our fans have given me.”

Widespread Panic has been named as the closing main stage act of the Bonnaroo Music and Arts Festival, set for June 12-15 in Manchester, Tenn. The lineup was shuffled in the wake of a cancellation by the Allman Brothers Band due to health issues with founding member Gregg Allman.

"We're thrilled that Widespread is joining the Bonnaroo lineup again this year," Ashley Capps, president of A.C. Entertainment, producer of Bonnaroo with Superfly Presents, tells Billboard.com. "It was very disappointing that the Allman Brothers had to cancel, but we feel lucky that Panic could step in. They've been at the heart and soul of Bonnaroo from its inception and their Bonnaroo sets never fail to be an extraordinary experience for the fans."

Jack Johnson will now precede Pearl Jam on the main stage Saturday night, stepping into the slot vacated by the Allmans. Johnson, who had originally been scheduled to close the fest on Sunday, will perform beginning at sunset on Saturday, to be followed by Pearl Jam's closing main stage set.