The Coldplay singer took the actress to a romantic dinner on the actual date, October 4. He then threw her a party with her closest friends over the weekend to celebrate her big day.

Martin’s 17-year-old son Moses, who he has with ex-wife Gwyneth Paltrow, offered to help him celebrate the day.

In pictures received by Daily Mail, the Yellow singer showed off a casual outfit consisting of gray shorts, a long-sleeved shirt in the same color, and a black vest for warmth.

The teen, meanwhile, wore gray pants and a white T-shirt with a picture of the rock band The 1975 on it.

Leslie Mann and Judd Apatow, who used to work with Johnson, were also there. Jodie Turner-Smith, who was just single, also came out of hiding to join the party fun. Jeremy Allen brought a bouquet of flowers and his two girls.

There were reports that Dakota and Chris were engaged after the Persuasion star was seen with an emerald on her ring finger at a birthday dinner with the singer last week.