How Well Do You Know 5 Seconds Of Summer?

Ashton. Luke. Calum. Michael. You know 'em better as the boys of 5 Seconds Of Summer, the Aussie pop-punk imports responsible for delivering smash hits like "She Looks So Perfect," "Amnesia" and, most recently, "She's Kinda Hot."

But how well do you really know them?

We've put together a little quiz to test your knowledge — specifically some little-known tidbits about each member of the band. Think you're a hardcore member of the fanbase? Know everything about everything 5SOS? Take our quiz below, and then let us know how you scored in the comments below.

Find Out The Meaning of 5 Seconds Of Summer's Band Name