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Klum modeled a hat ― and nothing else ― earlier this year. (3/26/2013)

Heidi Klum's Raciest Twitter Photos (So Far)

August 19, 2013

For the supermodel, turning 40 has been all about showing her saucy side! The mom of four, who reached the milestone birthday on June 1, has been increasing her Twitter and Instagram followers by showing off her million-dollar body to the masses. Take a look…