The six-week trek will launch July 11 in Baltimore, with amphitheatres booked throughout the South and East Coast. Brooklyn, Chicago, Atlanta and Boston are all on the itinerary, which runs through August 19, wrapping in Portland, Maine.

Before heading out with Guster, LaMontagne will visit the U.K. for three shows with David Gray and an appearance at the Wireless Festival in June. He’ll also share a stage in Ireland with Bob Dylan, The Flaming Lips, and Violent Femmes at Kilkenny’s Nowlan Park June 24.

Guster, which has spent the spring rallying for the environment on the Campus Consciousness Tour, will appear at Summerfest in Milwaukee, Wis., three days before the tour launch.

Guster’s new album, Ganging Up On The Sun, is set for release June 13.

LaMontagne recently released a concert EP, Live From Bonnaroo.