1 of 9
Celeb Nerds Who Turned Hot

2 of 9
Patrick Dempsey

3 of 9
Sarah Jessica Parker

4 of 9
Robert Downey Jr.

5 of 9
Ariana Grande

6 of 9
Ariel Winter

7 of 9
Joseph Gordon-Levitt

8 of 9
Chris Pratt

9 of 9
Matthew Lewis
