Ryan Gosling is hot. So is Charlize Theron. And we wouldn't exactly kick Nicole Kidman out of bed.
But these hot stars all went stone cold for at least one movie role on their resume, gaining weight or sitting on the makeup chair for hours in order to become nearly unrecognizable.
Talk about dedication to one's craft! Admire their amazing transformations below...
Charlize Theron in Monster
Charlize Theron may legitimately be the best looking woman on the planet. But she won an Emmy for transforming herself into a real-life serial killer in Monster.
Ryan Gosling in Blue Valentine
He gained weight. He rocked some uneven facial hair. But, who are we kidding, would any woman still not bang this version of Ryan Gosling?
Rumer Willis in House Bunny
Few people consider back braces to be a sexy piece of apparrel. Kudos to Willis for rocking one in House Bunny.
Nicole Kidman in The Hours
That's a fake nose on the actress. But a really great performance.
Rooney Mara in The Girl With The Dragon Tattoo
How can an actress make herself ugly while also getting naked as often as Rooney Mara does in this movie? Go watch it.