Katy Perry poses with her songwriter awards for “Hot N Cold” and “Waking Up In Vegas.” (Chris Pizzello / Associated Press)
Tyson Ritter, of The All-American Rejects, acknowledges the crowd after performing at the ceremony. (Chris Pizzello / Associated Press)
Ronnie Vannucci Jr., left, of The Killers accepts the Vanguard Award while lead singer Brandon Flowers looks on. (Chris Pizzello / Associated Press)
Jason Mraz accepts the Song of the Year award for “I’m Yours.” (Chris Pizzello / Associated Press)
Hip hop artist Flo-Rida performs for the crowd. (Steve C. Mitchell / EPA)
Singer and songwriter Jessica ‘Jessi’ Alexander performs. (Steve C. Mitchell / EPA)
Singer and songwriter Jason Mraz performs during the show. (Steve C. Mitchell / EPA)
