Tim McGraw is embarking on a 33-city summer tour and will release a new album on Aug. 31, the singer announced Monday (March 22). Joining McGraw and his band, the Dancehall Doctors, on the Out Loud tour will be the Warren Brothers and Big & Rich -- the new duo featuring Nashville singer-songwriter Big Kenny and former Lonestar member John Rich. The three-act tour kicks off June 11 in Virginia Beach. Va., and is currently scheduled to end Aug. 1 in Nashville. McGraw and his band also appear Aug. 6 during WE Fest in Detroit Lakes, Minn. In addition to his work on the new album, McGraw has been filming Friday Night Lights in Texas. McGraw and co-star Billy Bob Thornton will headline an April 10 concert in Austin, Texas, to raise money for the Gridiron Heroes Spinal Cord Injury Organization. The charity assists athletes injured in high school sporting events.