J. Law and Chris Martin take their relationship public

Jennifer Lawrence and Coldplay’s Chris Martin stepped out together at a dinner with friends Thursday night at the Chateau Marmont in LA.

Spies tell us the “Hunger Games” actress, 24, and the singer, 37, were joining friends at a birthday celebration and were both “all smiles” and “had grins from ear to ear.”

Lawrence was just announced as a co-host of the 2015 Met Ball, titled “Chinese Whispers: Tales of the East in Art, Film and Fashion.”

While Martin is still consciously uncoupling from wife Gwyneth Paltrow, sources say she approves of his new relationship with Lawrence.

We’re told, “Things are very amicable, and Gwyneth is happy for Chris.”