By InStyle Staff
May 06, 2012 @ 12:00 pm
Ipol; Alex J. Berliner/ABImages

George Clooney, you're growing up right before our eyes! The Oscar winner turns 51 today, and in celebration, we're remembering his days pre-salt-and-pepper hair. Click through the gallery to see his transformation from silver screen Facts of Life star to internationally-loved celebrity.

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