If you wanted to know who the biggest fan of the US Open was this year, we'd like to point your attention towards Justin Timberlake.

On Saturday night, the singer and his wife Jessica Biel watched tennis star Roger Federer beat Spain's Feliciano Lopezi in the third round of the men's singles tournament at the 2017 U.S. Open at Arthur Ashe Stadium.

Justin Timberlake and Jessica Biel | ELLE UKpinterest
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However, we were far more excited by the former N-Sync band members facial expressions than the match, as it appears Timberlake well and truly lost his sh*t during the game.

Justin was spotted looking in shock, awe, happiness and relief during the match, much to his amused mother of his child.

Justin Timberlake | ELLE UKpinterest
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Justin Timberlake | ELLE UKpinterest
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The pair were also spotted enjoying each other's company, laughing at jokes and kissing during the match.

The 'Rock Your Body' crooner has attended the annual tennis championship every other year since 2009, according to E! News, along with his wife of five years.

Justin Timberlake | ELLE UKpinterest
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Justin Timberlake | ELLE UKpinterest
Getty Images

At the 2015 U.S. Open, Timberlake and BFF comedian Jimmy Fallon even treated fans to a dance in the stands to Beyoncé's hit single 'Single Ladies'.

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Justin is loving life right now, clearly.

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Katie O'Malley
Site Director

Katie O'Malley is the Site Director on ELLE UK. On a daily basis you’ll find Katie managing all digital workflow, editing site, video and newsletter content, liaising with commercial and sales teams on new partnerships and deals (eg Nike, Tiffany & Co., Cartier etc), implementing new digital strategies and compiling in-depth data traffic, SEO and ecomm reports. In addition to appearing on the radio and on TV, as well as interviewing everyone from Oprah Winfrey to Rishi Sunak PM, Katie enjoys writing about lifestyle, culture, wellness, fitness, fashion, and more.