Everybody has their days when they're not feeling too hot... Or maybe that's exactly the problem — a fever! Either way, everybody comes down with some kind of cold or cough sooner or later, even your favorite stars like Austin Mahone and Ariana Grande. It's nothing to be sad or embarrassed about — in fact, some stars even embrace it by taking pictures!
M rounded up 15 times that celebs have felt under the weather. Click through the gallery and then tell us in the comments: What do you do when you're sick? What makes you feel better?