If you don't think dancers are athletes, here's a new ad from Under Armour, featuring American Ballet Theater soloist Misty Copeland, that might make you reconsider your position. A sponsored athlete of the UA brand, Misty may not compete in an arena, but anyone who has ever sashayed into a dance studio knows it is a competitive world, and this new ad speaks to her perseverance. The ballerina told The New York Times that although she never received such a harsh rejection letter as the one featured in the ad, she faced similar criticism, like being too muscular and too big. But it is her muscularity and her athleticism that we so admire. This video made us want to dust off our dancing shoes — how about you?