Last week George Strait told country.com he was working on one more act for next year's George Strait Country Music Festival. Now the deal is official, and RCA recording artist Sara Evans has joined the all-star bill for the fourth annual outing. She joins previously announced support acts Alan Jackson, Brad Paisley, Lonestar, Lee Ann Womack and Asleep at the Wheel. Evans' current single, "Born to Fly," is the title cut from her new album and is at No. 6 on the Billboard country singles chart. The Strait festival kicks off in March. Specific dates and cities are still being considered and will be announced in January.