Jackson Browne [ tickets ] will join Tom Petty [ tickets ] and the Heartbreakers' tour on June 27 in Scranton, Pa., and will continue with the outing through its conclusion, according to Petty's publicist.

The Wallflowers opened the Heartbreakers' dates through May 21, and Steve Earle and the Dukes will open the remainder of the tour's first leg, which concludes on June 2.

Petty's tour was initially scheduled to visit 15 western U.S. cities, and was intended to help the group warm up for subsequent studio sessions. The second leg focuses on the eastern U.S.

Southern California singer-songwriter Browne released two albums of original material during the '90s--1993's "I'm Alive" and 1996's "Looking East."

Browne is also to perform in Seattle on Friday (6/1) at the Songbird Foundation's benefit concert for the Sustainable Coffee Campaign. The benefit, to be hosted by novelist Tom Robbins, will also feature performances by Bonnie Raitt and Keb' Mo'.