Mastodon and Against Me! will be embarking on a co-headlining tour with Cursive providing direct support in May. The three bands will be joined by These Arms are Snakes and Planes Mistaken for Stars, who will be splitting support duties on the tour. To view the list of confirmed dates, click "read more." w/ Planes Mistaken for Stars 5/1 Los Angeles, CA @ Wiltern LG 5/2 San Francisco, CA @ Warfield 5/4 Portland, OR @ Roseland Ballroom 5/5 Seattle, WA @ The Fenix 5/6 Boise, ID @ Big Easy 5/7 Salt Lake City, UT @ In The Venue (no Mastodon) 5/8 Denver, CO @ Fillmore Auditorium 5/11 Minneapolis, MN @ The Myth 5/12 Chicago, IL @ Riviera Theatre w/ These Arms are Snakes 5/13 Detroit, MI @ State Theatre 5/14 Cleveland, OH @ House Of Blues 5/15 Toronto, ON @ Kool Haus 5/17 New York, NY @ Roseland Ballroom 5/18 Philadelphia, PA @ the Electric Factory 5/19 Boston, MA @ Avalon 5/21 Columbus, OH @ Lifestyles Pavilion 5/22 Cincinnati, OH @ Bogart's 5/23 Baltimore, MD @ Sonar 5/25 Orlando, FL @ House Of Blues 5/26 Atlanta, GA @ Tabernacle