Happy Birthday, Heidi!

Fashion mogul Heidi Klum turns 37 today!

Heidi is probably celebrating her big day with her family - so many cute faces!

And maybe with the biffle, Tim Gunn...

Remember to check out where this HOT mama landed on our Faces Hot 100 List!

Faces Hot 100: 21 - 30

#21: Naomi Watts


#22: Heidi Klum

#23: Kate Winslet

#24: Keri Russel

#25: Amy Adams

#26: Keira Knightley

#27: Portia de Rossi

#28: Natalie Portman

#29: Leighton Meester

#30: Padma Lakshmi