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Canadian sensation Carly Rae Jepsen led a huge flash mob over the weekend as she performed her catchy hit Call Me Maybe on a tennis court during the Arthur Ashe Kids' Day tennis and music festival in New York.

The dozens of flash mob participants -- including several tennis players, Olympians and other musicians -- danced and sang along to Jepsen's performance on Saturday.

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Top tennis stars Roger Federer, Serena Williams, Kim Clijsters and Andy Roddick were on hand for the 17th annual Arthur Ashe Kids' Day, Presented by Hess, at New York's USTA Billie Jean King National Tennis Center. Kids' Day is an annual tradition that kicks off the US Open each year in honor of the late tennis great Arthur Ashe.

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Watch the video to get a glimpse of the mass dance and to hear Jepsen -- as well as Olympic swimming star Missy Franklin and Glee star Matthew Morrison -- talk about their involvement in Kids' Day activities.

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