Colbie Caillat and Gavin DeGraw will be co-headlining a summer tour, starting in May.

The singers announced their 22-city tour today with Andy Grammar as the opening act.

DeGraw, who is currently on Dancing with the Stars, will perform songs from his latest album, Sweeter. Caillat will feature new material, as well as songs from her previous three albums.

See if the duo will be performing near you:

5/25/12 Simpsonville, SC Charter Amphitheatre at Heritage Park
5/26/12 Biloxi, MS Hard Rock Hotel
5/27/12 St. Augustine, FL St. Augustine Amphitheatre
5/29/12 Pittsburgh, PA State AE – Outdoors
6/1/12 Philadelphia, PA Penns’ Landing – River Stage
6/2/12 New York, NY Rumsey Playfield
6/5/2 Bethlehem, PA Sands Bethlehem Event Center
6/7/12 Pomona, NY Provident Bank Park
6/8/12 Norfolk, VA Town Point Park
6/9/12 Vienna, VA The Filene Center at Wolf Trap
6/10/12 Baltimore, MD Pier Six Pavilion
6/12/12 Raleigh, NC Raleigh Amphitheatre
6/13/12 Atlanta, GA Chastain Park Amphitheater
6/14/12 Charlotte, NC Time Warner Cable Uptown Amphitheater
6/17/12 Fayetteville, AR Arkansas Music Pavilion
6/19/12 Bee Cave, TX The Backyard
6/21/12 Lake Charles, LA L’Auberge Du Lac Casino Resort – Pool Stage
6/22/12 Thackerville, OK WinStar Casino
6/24/12 St. Louis, MO Peabody Opera House
6/26/12 Sioux City, IA Orpheum Theatre
6/27/12 Apple Valley, MN Weesner Amphitheater
6/29/12 Highland Park, IL Ravinia Festival

Pre-sale tickets will be available March 27, and tickets for the general public go on sale March 30. Will you be attending?