How well do you know One Direction? —
Are you the ultimate One Direction fan? Whether you're young or young at heart, it's hard to resist the pop stylings of these five adorable Brits. With the group's new 3-D concert documentary, "One Direction: This Is Us," hitting theaters August 30, we thought we'd put both new and devoted fans to the test with CNN's Ultimate One Direction Quiz. Live while you're young and give it your best shot!