Happy Birthday, Julianne Hough, Gisele Bundchen!

Our favorite Dancing with the Stars professional/aspiring country music singer/outright hottie celebrates her birthday today.

Indeed, Julianne Hough turns 21 years old, meaning this chaste beauty can finally swallow something a bit harder than water.

The girlfriend of Chuck Wicks and brother of Derek Hough is taking the upcoming season of Dancing with the Stars off in order to focus on her singing career. As long as she continues to look like this, we're pretty sure Julianne is in good shape.

In honor of the talented birthday gal, click on the following photos of Julianne Hough...

Meanwhile, one of the only people on the planet that can rival Hough for pure and utter sexiness is Gisele Bundchen. She turns 29 today. Drool away, boys...