Here are the year’s catchiest, most addictive tunes from both pop’s biggest icons and the superstars of tomorrow.
Katy Perry, "Roar"
Hooky as all hell without ever being intrusive, Katy Perry makes the best treadmill music. "Roar" is her signature gym song. It's got "Survivor"-inspired lyrics and a chorus that makes you want to run for an extra five minutes. And yeah, it sounds like other songs, like the equally perfect "Brave" by Sara Bareilles and Robbie Williams' "Something Beautiful." Put them all on a playlist and you'll never hate working out again. —Myles Tanzer
Charli XCX, True Romance
