The 2015 U.S. Open is in full swing, and stars have been flocking to Flushing Medows, N.Y. to watch the best tennis players in the world battle it out at the Billie Jean King National Tennis Center.
From Niall Horan and Jamie Foxx, who caught first round matches, to Kendall Jenner, Gigi Hadid, and Joe Jonas, who cheered on the Williams sisters during the quarterfinals, we've spied a wide variety of tennis spectators in the stands at Arthur Ashe Stadium. As the tournament progresses and the finals approach, we have a feeling there will be plenty more celebs seen enjoying the matches. Below, see all of the famous faces who've attended the U.S. Open so far.
1. Aziz Ansari and Courtney McBroom
The comedian got the loudest cheer of the night, as he watched Venus and Serena Williams play each other during day nine of the U.S. Open with his girlfriend Courtney McBroom.
2. Melania and Donald Trump
Trump took a break from campaigning for the Republican presidential nomination to watch the Williams sisters in the quarterfinals with his wife, Melania.
3. Kim Kardashian
The mom-to-be braved the heat (and posed for fan selfies) at the quarterfinal match between Venus and Serena Williams, which she attend with her younger sister Kendall Jenner, Gigi Hadid, and Nick Jonas.
4. Kendall Jenner, Gigi Hadid, and Joe Jonas
Before the supermodels walk the runways for New York Fashion Week, they headed to Arthur Ashe Stadium with Kim Kardashian and Joe Jonas to watch Serena Williams beat her sister Venus and advance to the semifinals.
5. Oprah Winfrey and Gayle King
The mogul and her bestie Gayle King were riveted by the exciting matchup between Serena and Venus Williams during day nine of the Open.
6. Jesse Metcalfe and Cara Santana
Dressed in coordinating white button-downs, Jesse Metcalfe and his girlfriend Cara Santana cheered on the players in the Time Warner Cable suite at Arthur Ashe Stadium.
7. Dylan McDermott and Maggie Q
The cute couple shared a laugh in between sets as they watched Roger Federer beat John Isner to advance to the quarterfinals.
8. Christine Taylor and Ben Stiller
Stiller and his wife Chrstine Taylor cheered on South African player Kevin Anderson, as he upset Andy Murray to win his fourth round match.
9. Hoda Kotb and Kathie Lee Gifford
The Today Show hosts took in the early morning matches on day eight, watching Victoria Azarenka defeat Varvara Lepchenko to advance to the quarterfinals.
10. Katharine McPhee and Elyes Gable
Katharine McPhee rested her head on her boyfriend Elyes Gable's shoulder as they watched a marathon day of tennis on Sunday.
11. Justin Barthas and Lia Smith
It was a family affair for Justin Bartha! He attended day seven of the U.S. Open with his wife Lia Smith and their daughter Asa.
12. Kelly Rowland
The musician raised her arms in a gesture of victory as she watched her friend Serena Williams beat Bethanie Mattek-Sands on day five of the U.S. Open.
13. Chloe Grace Moretz and Her Mom
The young actress and her mom Teri Duke Moretz cheered Andy Murray on during his third round match.
14. Tiger Woods and Daughter Sam
The pro golfer took his eight-year-old daughter Sam to the U.S. Open, where they watched Fabio Fognini defeat Rafael Nadal during the third round.
15. Niall Horan and Jamie Foxx
The One Direction member and the actor showed their support for the players early, attending day three of the tournament.
16. Derek Jeter
The former Yankee attended the first day of the U.S. Open, where he watched Caroline Wozniacki defeat Jamie Loeb.