The iHeartRadio Music Awards usually rival the Grammys and VMAs when it comes to star power, and this year’s ceremony at the Shrine in Los Angeles keeps that tradition alive by featuring performances by Madonna, Rihanna, Iggy Azalea, Sam Smith, Snoop Dogg and many more. Taylor Swift will also make an appearance during…

Source: RollingStone
Link: Madonna, Rihanna, Sam Smith to Perform at iHeartRadio Awards