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DREW BARRYMORE & CAMERON DIAZ

The Charlie's Angels costars are close as can be – and even consider themselves siblings! "She's my sister but we bro out and have crazy adventures," Drew raved to Cosmpolitan when longtime her pal appeared on the cover this year. "That has been a big part of our friendship, knowing that she will throw down at any time as well as that sisterly, cozy, nurturing love that we have." Aside from adventures, the two also share a taste for sultry, cool clothing.