When God sat down to craft the perfect celebrity, He likely came up with Heidi Klum.

This super model has four children; has been happily married for five years; is involved in numerous charities; makes millions of dollars a year; and looks great naked.

She and Seal renew their vows once per year because, as Heidi beautifully puts, "it's about remembering this moment of love we gave to each other and reinforcing it. It's so special to us, something we love and something our children have gotten accustomed to."

Klum made a cameo in The Devil Wears Prada and has also found success on the small screen. She hosts Project Runway and has guest-starred on such hit shows as How I Met Your Mother and Sex and the City.

Heidi turns 37 today and, yes, this is all an excuse to honor the birthday gal with a photo montage. Sit back, ogle the beauty below and be sure to send your best wishes to her on this special day...