Megan Fox made her first appearance after her big baby announcement ... but it was only from the neck up so you couldn't see her belly.
The actress, who our sources say is 4 to 5 months along in her pregnancy, and her rock star boyfriend, Machine Gun Kelly, rolled up in a Rolls-Royce to the Chateau Marmont in L.A. for the GQ Men of the Year 2024 party.