She may have flipped her way into the hearts of Americans on bare feet, but now Shawn Johnson is thrilled to be putting on her dancing shoes! “It’s an opportunity of a lifetime,” the gold-medal Olympic gymnast told In Touch at the Jonas Brothers: The 3D Concert Experience movie premiere in Hollywood on February 24 of her stint as the youngest contestant ever on the ABC hit Dancing With the Stars. But don’t think it will be simple for the 17-year-old to hop from tumbling to tangoing. “I can only describe it as night and day,” she added. “To dance on hardwood floor in heels is totally different from bouncing around barefoot. It’s a challenge, and I’m working hard at it.” Catch the adorable gymnast and her partner, Mark Ballas, on the eighth season premiere on March 9.