Being an Olympic synchronized swimmer takes athleticism, grace, and showmanship — not to mention a grueling training regimen. Just ask Mariya Koroleva and Mary Killman, who will be representing the US in the 2012 Olympics duet synchronized swimming category. We spoke to Mariya and Mary to find out how they train on land to stay so graceful and strong in the water. Want to work out like a synchronized swimmer? Watch our video to learn their favorite strength-training moves as well as what the ladies are looking forward to once they get to London!