Britney Spears and Kate Hudson
Credit: Kevin Mazur/Fox/WireImage; Peter Kramer/NBC/Getty

Even stars get starstruck sometimes. When Britney Spears showed up to Kate Hudson's game night this weekend, for example, Hudson had a serious fangirl moment. And who could blame her?

The 36-year-old mother of two posted a photo to her Instagram account of her and Spears both wearing black tank tops and looking over their shoulders at the camera. (Note: must remember to wear black to next celebrity game night.)

Hudson captioned her photo with, "That moment when @britneyspears shows up to your game night"

It turns out Spears, 33, was just as excited to be there. The pop star posted not one, but two snaps to her own Instagram account of her posing with Hudson. She captioned one: "Two blondes... Too much fun. Loved hanging with you last night @katehudson!"

We're glad that Spears is taking time to hang out with friends. The busy singer recently announced that she's extending her Las Vegas residency for two more years.