Many stars pick up beauty tips while on the set of a movie, on a photoshoot or while touring, so it's no surprise that they're extremely opinionated when it comes to their makeup.

In our latest roundup of style quotes, we're taking a look at what our favorite celebrities think about their beauty routines. Some may surprise you (guess what Peter Gallagher had to say about his eyebrows?), while others might not (Ke$ha loves glitter). Check out the gallery below to see what Lady Gaga, Gwen Stefani, Lauren Hutton and more had to say:

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