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[1]

Chris Martin was surrounded by loved ones as he rang in his 40th birthday. On Thursday, his ex wife, Gwyneth Paltrow, commemorated the special day by posting a sweet note on social media. "HAPPY 40th BIRTHDAY to the best daddy in the world!!!" she wrote alongside a selfie of them with their kids, Moses and Apple [2]. "We [love] you so much." The post comes just a day after Gwyneth went Instagram official with her boyfriend [3], Brad Falchuk. Although the couple has been quietly dating [4] since she "consciously uncoupled [5]" from Chris in 2014, her birthday note to the American Horror Story co-creator was the first time she publicly acknowledged their relationship on social media.