Carly Rae Jepsen came to the USTA Billie Jean King National Tennis Center in Flushing, New York City to support Arthur Ashe Kids' Day 2012. The Canadian breakout star was joined by the likes of The Wanted, Mindless Behavior, Owl City, Rachel Crow, Matthew Morrison and many more.
Carly hit the tennis court singing her No. 1 single "Call Me Maybe" while several tennis players showed off their dance moves. Max George, Jay McGuiness, Siva Kaneswaran, Tom Parker and Nathan Sykes joined the group before the boys from Mindless Behavior came running to the center field to be part of the fun.
The solo performance on Saturday, August 25 ended up becoming a mass dance by a large number of people. "The X Factor (US)" alum Rachel and one-man band Adam Young were seen among the crowd doing the impromptu flash mob captured in the following video.