Kings of Leon are "like 12-year-olds" when they see boobs from the stage.
The 'Sex on Fire' band can't resist sneaking a peak when girls bare their assets at them during their live shows, and admit they act like schoolboys.
When asked by Britain's Radio One how they react to seeing boobs, Caleb said: "Well we're all basically 12-year-olds on stage anyways. Anytime a girl decides to dump them out we are all er ... You can always tell cause the stage like ... everyone slowly starts looking in that direction and then the flash lights go on, then it's like, 'Okay we're all 12 again.' "
The revelation came after an unknown man shocked the band and fans by stripping off completely at a gig in Birmingham, middle England, earlier this year.
Caleb - who is married to model Lily Aldridge - described the incident, saying: "We saw them look in that direction so we're all looking over expecting to see, you know, a nice lovely lady and instead it was a butt naked Englishman."
Luckily the 'Use Somebody' band - which is completed by Caleb's brothers Nathan and Jared as well as their cousin Matthew Followill - saw the funny side.
Caleb added: "He was smart enough to do it in 'Sex on Fire' which made it even more fun."
Nathan, 33, even invited the mystery streaker for a drink after the show, tweeting: "Hey Birmingham sausage man, if you're on Twitter, DM me. We owe you a beer tomorrow night."