Warren Haynes

Dates into September support new solo album that debuted at No. 1 on Billboard's Blues Album Chart.

The late Allman Brothers Band guitarist opened an important door.

Haynes tells UCR about Gregg's influence and also looks back at the final Allman Brothers Band concert.

"People may find that hard to believe, but it had never happened," Warren Haynes tells UCR. "It was history."

He was given a clear directive when the two first collaborated in the late '90s.

This year's all-star concerts will include Warren Haynes, Jamey Johnson, Don Was and others.