There's simply no excuse for a bad hair day/week/year (*delete as appropriate) when you've got more cash and stylists than you can shake a hairbrush at. But somehow, these lot have managed it.
From Becks' Alice band to Britney shaving her head, we've got the good, the bad and the downright U.G.L.Y.
Katy Perry's gone crazy for rollers with her blue do. We're not convinced - it kind of looks like a tidal wave on her forehead, non?
Err... Lady Gaga's turquoise, gravity-defying hair. Accessorised perfectly with gravity-defying heels.
Is it just us or does it look like there are loads of blonde snakes crawling over Christina Aguilera's head?
Victoria Beckham in post-Spice Girl, pre-fashion label, full-WAG mode.
She may be the face of L'Oréal, but no one - not even Chezza - can get away with that much hairspray!
Yeah, remember that time when Britney shaved her head?
Miley Cyrus's chop. We preferred the cute bob for sure.
We're so grateful he doesn't wear Alice bands anymore. Why Becks, why oh why?
A repeat offender...Remember that time when Gaga dressed up as a (very convincing) guy?
Kelly Osbourne's purple hair. Just... no.
Natalie Portman when she got the buzz cut. Are we weird to think that she still looks gorgeous?
Uh-oh, Kim Kardashian's extensions seem to have taken their toll on her hair. Is that a bald patch we spy?
A repeat offender... Becks with the double ponytail.
Pauly D from Jersey Shore is not afraid of greasing up his do. Oh no.
Good Girl Gone Goth - Rihanna's moody emo dreads.
Faye Tozer from Steps and those dreads...