When Pink isn't busy performing aerial stunts on stage [1], she's at home being a doting mom. On Saturday, the singer surprised her 5-year-old daughter, Willow, with an epic Matt Damon-themed birthday cake. Fortunately, Pink took to Instagram to share a photo of the Mars-shaped dessert [2], jokingly writing, "Matt Damon [3] made it after all." She also uploaded a sweet photo of her and Willow playing the violin [4], which she captioned, "Happy birthday baby girl. I carry your heart with me. -💞"

Just last month, Pink told ET that she got in trouble [5] with her daughter for telling the press about Willow's crush on Matt, admitting, "She's already upset with me because there's a new game we play called Ask Siri — which, she just found out last week there's a Siri — and I said, 'Siri, Willow, Matt Damon' and all this stuff came up. [Willow's] like, 'How do they know?' She got mad at me! I was like, 'Oh my God! I need to keep my mouth shut. Sorry!'" Check out even more cute pictures of Pink and her family [6].