You won't believe how Demi detoxes, how Cameron zaps a zit, or what Sandra puts on her face.
Some of these will surprise you!
Rihanna isn't the only celeb who isn't thrilled about her haircut.
See her metamorphosis from fresh-faced teen model to megastar.
Maybe fellow Artistic Director Justin Timberlake can give her some pointers.
Wait until you see Mila Kunis' "before" photo.