Country singer Carrie Underwood is adding fashion designer to her resume by launching a line of athletic wear.

The Before He Cheats hitmaker, who is pregnant with her first child, has teamed up with DICk's Sporting Goods to launch Calia by Carrie Underwood, a collection of fashionable gym clothes.

The singer tells the Associated Press, "I consider myself to be a pretty hard worker in the gym... The high performance things aren't pretty. And then the super pretty things don't last a long time or don't do what I need them to do. So there is a big gap."

The collection will be available in March (15).