Little Mix are releasing their own documentary, Glory Days: The Documentary, and obviously we're going to get some incredible footage that we've never seen before of the girls.
Including the time Leigh-Anne badly burnt herself.
A video posted by Little Mix's Twitter account shows Leigh-Anne pulling out of a performance in March this year, while supporting Ariana Grande. Unfortunately, she burnt her legs badly.
Calling herself an "idiot", she explains how she was using a steamer, but it was the wrong way around, so boiling hot water spilt all over her leg. The video shows her having cold water poured over her leg, before being put into a wheelchair.
She went on to say that she was an "accident waiting to happen," calling herself "clumsy." Luckily, she wasn't seriously injured.
Watch the moment below!