Jennifer Lopez
Fact: she actually looks younger NOW than she did in 1993!
Tom Cruise
Before he was an action star, he was an unknown actor with some pretty heinous teeth.
Victoria Beckham
Perhaps this is the reason she has such a hard time smiling — she can't get this image out of her head.
Jennifer Aniston
The Friends alum admitted to a nose job. And that decision certainly paid off handsomely.
Katy Perry
Luckily, Flock of Seagulls got their hair back.
Zac Efron
Just some more proof that a good dentist goes a long way.
Cher Lloyd
Thank goodness the X Factor alum had someone to tame those freakin' brows — and recommend a good dentist.
Megan Fox
Even one of the world's sexiest women had some bad days when she started in the biz.
Cristiano Ronaldo
Proof that an investment in new teeth and Proactive really does make all the difference.
