LAS VEGAS — Luke Bryan heard his name called at the end of the Academy of Country Music Awards, accepted the entertainer of the year trophy and then things became a blur. "It was like I was on the tilt-a-whirl," the Georgia Southern University alumnus said. Bryan pulled off a dizzying upset, all right, beating out the night's top winner Miranda Lambert, two-time entertainer of the year Taylor Swift and top male stars and good friends Blake Shelton and Jason Aldean for the academy's top award.