“Happy 40th birthday to the best daddy in the world!!! We love you so much!” the Iron Man actress, 44, captioned the image with ex-husband Chris Martin and their two kids: daughter Apple, 12, and Moses, 10.
The Sliding Doors star recently opened up about co-parenting with the Coldplay frontman.
“He’s at my house every single day,” Paltrow recently said. “We have our own lives but we still have our family life. To this day, Chris would take a bullet for me, even though I’m not his wife. I honestly think Chris and I have contributed something positive to the culture of divorce.”
Happy birthday to Chris!