NEW YORK — Serena Williams replaced her tennis racket with a microphone at a karaoke event a week ahead of the US Open.
The top-ranked athlete performed "Diamonds Are a Girl's Best Friend" on Wednesday night at Arena in New York City. She danced and swayed her hips in a mini dress as she sang the song in falsetto and attempted high notes.
Williams told the crowd before she began: "I'm really nervous."