'Just Dance' Into Lady Gaga's Hot Shots … Happy 40th Birthday!

Applause, please … Lady Gaga just hit a major milestone! The pop queen just turned the big 4-0, and we’re celebrating with her most sultry shots.

In honor of Gaga’s birthday, we’ve compiled her best photos … from booty-baring bikini pics to lustful lingerie snaps … and more!

Check out the full gallery if you wanna go goo goo for Gaga!

Tags: