Tom Petty and the Heartbreakers July 3, 2008

Since the late '70s, Tom Petty has combined blues, rock and folk sounds to create hits like 'Breakdown,' 'Don't Come Around Here No More' and 'Free Fallin'.' Steve Winwood is considered to have achieved one of the most esteemed careers of the rock era, one that spans more than 40 years. The Grammy winner, who has featured both as a solo artist and as a member of such celebrated bands as the Spencer Davis Group, Traffic and Blind Faith, has registered chart-topping, platinum-selling albums and singles and has jammed and recorded with everyone from George Harrison and Jimi Hendrix to Muddy Waters and John Lee Hooker.