From Serena Williams's outburst to Roger Federer's amazing shot there was a lot of action at the US Open this weekend in NYC. Justin Timberlake, Gwen Stefani, Gavin Rossdale, Ashley Olsen and so many others cheered on their favorite tennis players from the stands — check out all of the celebrities who came out!
The US Open Gets a Dose of Star Power
Around The Web
Chris Martin at Super Bowl halftime press conference with Coldplay as it's rumoured Rihanna and Justin Timberlake will show up
Matthew McConaughey and Charlize Theron Make Their Animated Film Debut in Kubo and the Two Strings - See Their Characters!
John Stamos Says the Olsen Twins Joke in the First Episode of Fuller House Isn't 'Meant to Be a Diss'
Right at the Last Second, Serena Williams Swooped in and Won Sexiest Dress of the Year