Eva Mendes, age 34, is the new face for Calvin Klein underwear. We'll be seeing her underwear commercials worldwide soon.

Mendes, who used to be teased in school for her buck teeth (and who is now known for her 'best celebrity teeth') replaces Natalia Vodianova, age 26, (in photo below). Natalia, the famous Russian model, was Calvin Klein's choice for the past three or four years. Natalia has given birth to three children since starting her modeling career and marrying a Russian real estate heir. Below is a racy video with Natalia for Calvin Klein Underwear;