June 05, 2016 02:30 PM

There were no princesses or unicorns at Pink‘s daughter Willow Sage‘s fifth birthday party — only Matt Damon.

The singer helped Willow ring in her fifth year with a The Martian-themed cake, complete with a miniature Damon perched on top.

“Matt Damon made it after all,” Pink wrote on the photo on Instagram.

Source: Pink/Instagram;JB Lacroix/WireImage

Earlier this year, Pink let it slip during an interview with radio hosts Kyle and Jackie O that Willow loved the film – and its star.

“She loves it. I love it. I thought it was great, but I don’t love it the way she loves it,” Pink said last month. “She asked me if Matt Damon can come to [her birthday party]. I think she has a crush.”

The 36-year-old also talked about Willow’s crush to Entertainment Tonight: “She wakes up and rolls over and goes, ‘Matt Damon. I’m like, ‘I know.’ … I’m thinking I’ll get her a Matt Damon poster [for her birthday]. I’ve never talked about Matt Damon this much in my life! She made me google Matt Damon dolls. That was disturbing. Do that sometime, they’re very disturbing.”

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Pink also posted a photo of she and Willow – her daughter with husband Carey Hart – playing violins.

“Happy birthday baby girl,” she wrote. “I carry your heart with me.”

— Lindsay Kimble

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