Ellie Goulding, Nick Grimshaw, Conor Maynard and One Direction's Niall Horan and Liam Payne, joined David on Wednesday night (14 May) at the exclusive bash held at Shoreditch House.
Chloe Green, Breaking Bad's Aaron Paul and singer Eliza Doolittle also came out to join in with the celebrations.
Retired footballer David looked dapper (and rather sun-kissed) as he dressed in all black to mark the launch of his debut swimwear collection for H&M.
While David's wife Victoria is busy on her current whirlwind tour of Asia to promote her new accessories collection, their son Brooklyn attended the bash, along with Victoria's sister Louise.
Even though there was a pool at the party, we hear Becks didn't take a dip himself!
Guests were however teased by three huge posters of the star wearing his new range in front of the pool.
One person who was pleased with the posters was Nick. The Sweat The Small Stuff host decided to strike a pose right in front of the posters while dressed in a red jacket and jeans.
Nick soon declared: "I love you David. I'll be your body double 4 life."
Radio 1 Breakfast Show host Nick also shared some photobooth snaps from the event - and it looks like they had a lot of fun!
The pictures show Nick doing a Miley and sticking out his tongue next to David, while pulling a funny face as he poses for a snap with Niall.
David's new range, which will include a range of board shorts, swim shorts and trunks, will launch in selected stores and online from 22 May.
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