Listen to 5 Seconds of Summer on iHeartRadio

Australian rock (boy)band 5 Seconds of Summer burst onto the scene this year with hot debut single, "She Looks So Perfect," which gives fans a look into their brand of rock-tinged pop. But 5SOS is a little more 'rock' than you may realize, as evidenced by their raucous cover of Green Day's "American Idiot." In fact, the guys count Green Day as a big influence on their music.

Check out the cover and let us know what you think in the comment section below!