From Priyanka Chopra and Jonathan Van Ness to Anna Wintour- all the stars spotted at the US Open

From sporting legends Rod Laver and Tiger Woods to pop icons Vanessa Williams and Queen Latifah, to the queen of couture herself, Anna Wintour, US Open Day 09 was a star-studded affair. Here's everyone we spotted.

It seems like a day out for the Chopra girls. Priyanka Chopra Jonas and her mother were spotted cheering Serena on at the Flushing Meadows. Photo: Priyanka Chopra (Instagram)
We all need someone who can keep the hype up the way Jonathan Van Ness does. The Queer Eye star was seen enjoying the game with actor Justin Theroux and comic Michael Che. Photo: Getty Images
All hail the Queens | Rapper and songwriter Queen Latifah showed her support for Serena Williams during her quarterfinal tie at the US Open. From one to another! Photo: Getty Images
OG cheer squad | Mama Oracene Price and sister Venus Williams wear worried faces here as they watch Serena battle it out for a spot in the US Open semis. Her 100th win is sure to have thrilled the duo. Photo: Getty Images
Olympic medal-winning ice dancer Alex Shibutani attends the US Open Men's Singles quarterfinal match between Roger Federer and Grigor Dimitrov. He is sure to have appreciated Federer's grace, be it in victory or loss. Photo: Getty Images
Anna Wintour, editor-in-chief of Vogue, was spotted enjoying the thriller of a quarterfinal between Federer and Dimitrov at the Flushing Meadows. We wonder what she makes of fashion's 'purple patch' in this edition of the tournament. Photo: Getty Images
Actor Penn Badgley and singer Domino Kirke watch the proceedings at the Flushing Meadows with her son, Cassius. Netflix star Badgley must be enjoying the time off from the bookstore (you know if you know). Photo: Getty Images
Neil Patrick Harris and actor-chef David Burtka were in attendance at Federer's quarterfinal tie. We know one game was strong last night- NPH's mustache's! Photo: US Open (Instagram)
Designer Vera Wang is evidently impressed by what she is seeing. No surprises that she was at Serena's game at the US Open. Photo: Getty Images
So what if Serena can't sport her favourite cat prints! Her supporter sure know how to compensate. Singer Vanessa Williams is a case in point as she watches Serena during her quarterfinal tie at the US Open. Photo: Getty Images
Lifestyle mogul, Martha Stewart looked on as Serena Williams and Qiang Wang fought it out for a place in the Women's singles semifinal at the US Open. Photo: Getty Images
Sometimes you cannot help but be wonder-struck by brilliance, even if you're watching your own partner. Alexis Obanian, Serena Williams' husband knows exactly how that feels after watching her quarterfinal tie at the US Open. Photo: Getty Images
We wonder if actor Jameela Jamil managed to get seats on the 'Good Side' at the Flushing Meadows. She attended the quarterfinal ties featuring Serena and Federer with partner James Blake. Photo: Getty Images
Rod Laver's expression here sums up how Federer fans might feel this morning. Utter disbelief at the results here at the US Open. Photo: Getty Images
Tiger Woods was there to watch Nadal win and he was there for Serena and Federer's clashes today too. We don't know if we like or are scared by the tough dad/coach vibe Tiger has going on here. Photo: Getty Images