Little Mix have let slip about their terrible beauty habits to the Sunday Mirror.
The girls - who have just released a music video with Missy Elliott - confessed that they'll sleep in make-up and wear it the next day if they have somewhere to go.
"We're such tramps. If we get our make-up done and we like it and we've got something happening the next day, we'll sleep in it," admitted Jesy.
Perrie says she'll 'touch it up in the morning' and Jade jumps in to add that it works 'especially with a smoky eye'.
Leigh-Anne is a girl after our own hearts. "That's really dirty!" she says, according to Perrie.
Sleeping in make-up can clog pores and lead to fine lines on your skin. Avoid it if you can!
What do you think of the Little Mix girls' habits?
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