Cameron Diaz Beauty Looks Through the Years

Cameron Diaz burst into the scene in 1994's The Mask, instantly making the bright-eyed blonde a household name. And while it seems like just yesterday she was playing Jim Carrey's love interest in the flick, believe it or not, the leading lady turns 40 today. She's a perfect example of how a true zeal for life keeps you looking (and feeling) young. Celebrate this tough-girl spy, toad-eating princess, and all-around funny actress with a glimpse back at 10 of her top looks.