iHeart Goes Out To: Warner Bros./WMN's Blake Shelton was the only Country winner at last night's (5/1) iHeartRadio Music Awards. He won Country Song of the Year for "Boys 'Round Here." He also performed on the show, as did Luke Bryan. Clear Channel's awards gathering powered NBC-TV to a tie for its largest Thursday night, not including the Olympics or The Sound of Music Live, according to Zap2It.com. It pulled in 5.4 million viewers (1.7 rating/5 share) among adults 18-49, second behind CBS-TV's lineup, which included The Big Bang Theory, The Millers, Two and a Half Men, Bad Teacher and Elementary during the same time period. See highlights and the full list of winners here.