Carrie Underwood dared to go bare!

The 33-year-old country singer proved she's beautiful 24/7 after sharing a makeup-free selfie on Thursday, Aug. 25.

"I'm a sweaty mess, but I'm a sweaty mess in an adorable tank!" the mom-of-one captioned the Instagram pic of her workout.

MUST SEE: Carrie Underwood Shows Off Her Stunning Bikini Body on Vacation — See the Pic!

What do you think of Carrie's au naturel snap?

Click through the gallery below to see more stars with and without makeup on!