5 Seconds of Summer Joke They're 'The Biggest Band That No One's Ever Heard Of': Watch

5sos 5 seconds of summer
Eric Ryan Anderson

5 Seconds of Summer photographed at Asbury Park Convention Hall in Asbury Park, NJ on Aug. 30, 2015.

5SOS appeared on U.K.'s "Alan Carr: Chatty Man."

5 Seconds of Summer just want to fit in -- or, at least, that's what they told Alan Carr on his U.K. talk show Chatty Man on Friday (Oct. 9). The band talked about a concert where fans crawled through air vents only to be kicked out, which they described as absolute "bullocks." Carr asked if they actually used that word in their native Australia, and the boys sheepishly admitted they didn't.

See 5 Seconds of Summer's Billboard Cover Shoot

The boys drank beer, talked about "butt tattoos," acted out random hashtags and behaved as their usual goofy selves. At one point, Ashton Irwin revealed that their record label describes them as "the biggest band that no one's heard of."

Watch the cheeky video below: