Happy Birthday, Mario Testino! The 6 Best Supermodel Instagram Tributes

Not many people can say they scored birthday wishes from Gisele Bündchen, Cindy Crawford, and Lily Aldridge—but Mario Testino sure can. He's one of the most acclaimed fashion photographers of all time, so it's no wonder why models are crazy for him. From his famous Princess Diana portraits in the '90s to his current Towel Series, Testino is responsible for some of the most iconic fashion images ever.

Scroll down to see how supermodels are paying tribute to the living legend on his birthday!