Proof that sometimes Hollywood girls can be un-glam!

There's one trend in Hollywood that won't ever make the cover of Vogue but everyone seems to be following it!

Leighton Meester who plays Blair on the set of Gossip Girl

Anne Hathaway on the set of Bride Wars, her new comedy co-staring Kate Hudson

The humble bin liner-style puffa jacket has been making a come-back recently on the sets of movies and shows like Gossip Girl and Heroes - proving that sometimes cosiness counts more than couture!

Sandra Bullock on the set of new movie The Proposal which also stars Ryan Reynolds

It can't be fun parading around in chilly New York in tiny mini skirts (well actually that does sound like fun!) but when you're the star of the show, you can't afford to be in bed with a cold.

Of course, a true pro will wear her puffa with prerequisite Ugg boots for ultra snugness but we're not sure everyone can rock the look without looking like a bag lady. Think we'll leave this one to the professionals.