Twilight hottie Robert Pattinson was seen wearing a beanie to keep his bed-head warm during these colder months, and he's not the only one rocking the classic winter hat. Click through to see who else is in Hollywood's skull-cap society…
Mischa Barton knows that the beanie is the official celebrity headgear of the Sundance Film Festival.
Some celebs even use beanies as a disguise to hide from paparazzi. Here's Ashlee Simpson disguised as Lindsay Lohan. Whoops.
Kate Beckinsale shows us that beanies even look great in the sunshine.
Ashton Kutcher, rocking the All-Business Beanie.
Minnie Driver proudly displays the floppy Euro beanie that's so popular among people who are adorable.
Woody Harrelson loves his beanie almost as much as he loves his bong.
Miley Cyrus' beanie is actually called a "Tweenie".
LL Cool J keeps his money right and his beanie tight, hip-hop style.
Lindsay Lohan and Samantha Ronson – I think we know who wears the beanie in this relationship.