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17 Times Your Fave Pop Stars Took Over The U.S. Open Tennis Championships

Popped polo collars and oversized tennis balls.

By Jessica Norton

Even if you don't really like tennis, you will die over what goes down on the court the day before the U.S. Open starts.

Every year a festival honoring the legacy of legendary tennis player Arthur Ashe is thrown right on the grounds of the U.S. Open Tennis Championships and it features some of the biggest musical acts. The star-studded event brings out everyone from Michelle Obama to Austin Mahone, celebrating the beginning of the tournament while promoting youth tennis and providing attendees with free swag and an insane concert.

Celebs hit the tennis court and battle it out with some pretty profesh athletes, such as Serena Williams, Rafael Nadal and Novak Djokovic -- NBD -- which is so fun and entertaining to watch.

The 20th annual Arthur Ashe Kids' Day will be held August 29 at the USTA National Tennis Center in Flushing, New York featuring Bea Miller and Jacob Whitesides -- two faves from MTV's Artist To Watch -- alongside American Authors, Kalin and Myles and Natalie La Rose. It's sure to be a crazy, good time.

Let's check out some #throwback performers who have graced the U.S. Open tennis court stage:

Britney Spears

Living for that neon-green tennis dress, though.

Rihanna

"Pon De Replay" was THE song of the summer in 2005.

Joe Jonas & Ansel Elgort

Casual bro-hang watching tennis faves kill it.

Ariana Grande

Ari belted "Baby I" at Arthur Ashe Kids' Day in 2013.

The Vamps

The Vamps got silly before hitting the stage to perform.

Backstreet Boys

Brian, Kevin, and Howie got competitive on the court in 1998.

Austin Mahone

The "Say Somethin" singer had the girls going cray cray in 2013.

The Wanted

How adorbs were The Wanted in their official U.S. Open shirts?!

Justin Bieber

Justin made his national television debut in 2009 at the US Open's Arthur Ashe Kids Day performing "One Time".

Demi Lovato

Wanna "Get back to the old days"? Here's Demi posing on the U.S. Open red carpet!

Jessica Simpson

Jessica Simpson performing her year 2k hit "I Think I'm in Love with You".

Shawn Mendes

Fresh off of Vine fame, Shawn Mendes performed his acoustic jam "Life Of The Party" for the entire stadium.

Jonas Brothers

Joe's skinny white jeans had us all swooning in 2007.

Fifth Harmony

5H looked like dolls, as always, on the tennis court.

Hanson

It doesn't get more '90's than Hanson's "MMMbop".

MKTO

MKTO had the entire stadium clapping along to their infectious single "Classic".

Carly Rae Jepsen

Carly Rae Jepsen took to the court as Glee's Matthew Morrison ref'd in 2012.

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