Turns out, the birthday of Paltrow's boyfriend, Brad Falchuk, was the day before. The TV producer -- who also has two kids from another marriage -- turned 46 on Wednesday and, just like she did for Martin, Paltrow shared a selfie to celebrate. "Happy birthday, handsome," she captioned the image.
Paltrow and Martin seem to have figured out the secret to co-parenting amicably after divorce. This past year, the Oscar winner sat down with ET to talk about how she's managed to maintain a friendly relationship with Martin.
"You have to constantly let go," she admitted. "You have to let go of old ideas, old resentments. You have to put the kids first, which I think people have the idea of that, but then oftentimes, you struggle with it."