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Former teen idols, stunning supermodels, fabulous funny people, scandalous figures from the past... they're all turning 40 this year. See how the years have treated your favorite stars.

This is 40 ... in celebrity land

( Getty Images / December 17, 2012 )

Former teen idols, stunning supermodels, fabulous funny people, scandalous figures from the past... they're all turning 40 this year. See how the years have treated your favorite stars.

Celebs turning 40 in 2013: Neil Patrick Harris, Tyra Banks, James Marsden and more

This is 40 ... in celebrity land