Jason Mraz [ tickets ], Phish's Mike Gordon [ tickets ] and The Whigs [ tickets ] are among several new acts confirmed to perform at The Mile High Music Festival July 19-20 at the Outer Fields at Dick's Sporting Goods Park in Denver, according to a press release.

Lupe Fiasco [ tickets ], Hill Country Review, Stephen Kellogg and The Sixers, Ferras and Eric Hutchinson are among the other acts confirmed to join headliners Tom Petty [ tickets ] and the Heartbreakers and Dave Matthews Band [ tickets ] at the event.