44 Surprising Celebrity Friendships and freak out.

From Mariah Carey and Will Ferrell to Meryl Streep and 50 Cent.

They say it's a small world in Hollywood, but sometimes the lines get crossed in ways you wouldn't expect. From childhood besties (Gwyneth and Rashida Jones, really!) to pairs just brought together (Martha Stewart and Snoop Dogg, thanks to that Justin Bieber roast), we've rounded up the most surprising celebrity pals. Oh, to be at their dinner table...

Amanda Sayfried and More Whiteman

Cressido Bonos and Princess Beatrice

Jennifer Aniston and Paul Rudd

Jennifer Lawrence and Drew Barmore

Jude Low and Leno Dunham

Kate Hudson and Katy Perry 

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