Carly Rae Jepsen & Adam Young: Arthur Ashe Kids' Day!

Carly Rae Jepsen and Adam Young attend the 2012 Arthur Ashe Kids’ Day at the USTA Billie Jean King National Tennis Center on Saturday (August 25) in New York City.

The 26-year-old “Call Me Maybe” singer and the 26-year-old Owl City frontman performed their hit song “Good Time” at the event.

Tennis pros Andy Roddick, Roger Federer, and Serena Williams all attended the event to give pointers to some kids and celeb athletes while Glee‘s Matthew Morrison sat up in the referee’s box during the game.

Also pictured: Olympian Missy Franklin and X Factor finalist Rachel Crow.

FYI: Carly is wearing both ani lee‘s ‘Helena Dress’ in white eyelet and Juicy Couture‘s plaid top and skirt.

35+ pictures inside of Carly Rae Jepsen and more at Arthur Ashe Kids’ Day…