Girl group Little Mix have revealed that they once wrecked the dressing room of Union J and never owned up to the prank. 

Speaking to Yahoo! OMG about trashing the lads' personal space, member Jesy Nelson confessed they thought it was another boyband who were performing at the same event so they never admitted it was them:

"Well, we did once trash Union J’s dressing room. They still don’t know who did it. There was another boyband there and I think they thought it was them. We videoed it, and were going to put it up… but we never did.”

When asked what she likes to do after playing live, Nelson confessed that she's usually too sweaty to be bothered to get changed and go out partying: 

“You know what it is? I love a night out, but I sweat SO MUCH after a show, it takes me forever to get ready. [Leigh-Anne and Jade] go out straight after but I just don’t have time. My hair’s a mess, and in the end I’m just like ‘F*** it I can’t be bothered”.

Watch a recent interview with the Little Mix ladies below: