Julianne Hough isn't just one of the hottest female celebrities in the business, she's also one of the fittest.

The professional dancer, actress, and two-time champion on ABC's Dancing With the Stars sent the Internet into a complete meltdown after sharing a post-wedding photo of her insanely ripped six-pack on Instagram. Needless to say, she works out like a fiend.

The Footloose and Rock of Ages star was spotted at the beach in a tiny bikini, alongside husband Brooks Laich over Labor Day weekend.

Here are some of the jaw-dropping shots from Hough's action-packed day at the beach.