World No1 Serena Williams warmed up for the US Open in her own special way - by singing karaoke at Delta's Open Mic Night.
Having already mastered the tennis stage, Serena found a new stage to flaunt her skills as she took on "Diamonds are a Girl's Best Friend" at the event.
Others at Delta's Open Mic Night included Orange Is The New Black’s Uzo Aduba and Laverne Cox, comedian Kathy Griffin, 30 Rock’s Katrina Bowden, Glee’s Darren Criss, celebrity fitness trainer Shaun T and tennis star Jack Sock, who all sang their favorite tunes to gear up for the tennis tournament kicking off on Monday the 25th.
Griffin says she's particularly a fan of Serena because of how she had Caroline Wozniacki's back after her break-up. Except the actress refers to the Wozzilroy saga as: "when that guy, that golfer guy dumped his girlfriend".
Serena's karaoke performance is at minute 2:53... The 32-year-old is as fearless on stage as she is on a tennis court. See for yourself!