Kate Hudson and Matt Bellamy at the 2014 LACMA Art+Film Gala in Los Angeles. Credit: Jen Lowery/Splash News

A magical day for all! Kate Hudson and ex-fiancé Matt Bellamy reunited for their son Bing’s fifth birthday on Saturday, July 9 — and they celebrated in the coolest way.

The trio, plus Hudson’s firstborn, Ryder Robinson, 12, headed to the Palace Theatre in London to see the new Harry Potter and the Cursed Child play.

“Happy Bday Bing!!! #harrypotterandthecursedchild @katehudson xxx,” Bellamy, 38, captioned an Instagram photo of the family posing in front of a poster for the two-part West End stage play, which is currently in previews and officially opens on July 30.

Happy Bday Bing!!! #harrypotterandthecursedchild @katehudson xxx

A photo posted by Matt Bellamy (@mattbellamy) on

The Muse singer and Hudson, 37, also treated Bing to a Star Wars BB-8 toy and an epic Tony Hawk skateboard cake.

The Almost Famous actress shared a series of videos on her Snapchat account of the family playing with the toy, one of which she captioned, “When parents get excited about their kids toys!”

Earlier in the day, Hudson posted an adorable Instagram shot of herself and Bing cuddling up in bed. “And with a snap of my fingers, five years flew by,” she wrote. “Happy birthday Bingo #MorningSnuggle #5YearsOldToday.”

The Golden Globe winner and her rocker ex started dating in spring 2010 and got engaged in April 2011. They split in December 2014 but have remained amicable since. They even run their own wine company, Hudson Bellamy Wines, which they first developed in 2011.

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