Gigi Hadid
Gigi Hadid’s dad posted a sweet letter for his grandchild.

(Photo: REUTERS/Charles Pulliam)

Gigi Hadid celebrated her 30th birthday with a star-studded party in New York City, accompanied by boyfriend Bradley Cooper and a visible new accessory that has fueled engagement rumors. The supermodel was photographed arriving at Le Chalet alongside Cooper, wearing a sleek outfit consisting of a white corset top and high-waisted black leather pants, accessorized with gold jewelry and a noticeable sparkling ring on her left ring finger.

Hadid completed her look with pointed black pumps, a white clutch with gold hardware, and a slicked-back bun paired with bold red lipstick. Cooper coordinated subtly, wearing a Philadelphia Eagles leather jacket featuring the team's Super Bowl LII championship logo, layered over a blue velvet jumpsuit and finished with a chain necklace.

The event drew notable guests including Bella Hadid, Anne Hathaway, Tan France, Emily Ratajkowski, Will Arnett, and the model's parents, Yolanda and Mohamed Hadid. Hathaway arrived hand-in-hand with husband Adam Shulman, while Bella Hadid wore a backless black capri catsuit paired with black pumps and a red handbag.

 

Shortly after 11 p.m., attendees gathered to sing "Happy Birthday" to Hadid as she blew out candles on her cake. Throughout the night, Hadid and Cooper reportedly remained close, with a source telling PEOPLE, "They mingled and had fun, but also kissed every time they got near each other."

Hadid and Cooper were first linked publicly in October 2023, after meeting at a mutual friend's child's birthday party. Their relationship has since become more serious, with both stars integrating their children into the relationship. Cooper shares daughter Lea De Seine, 8, with ex Irina Shayk, and Hadid shares daughter Khai, 4, with ex Zayn Malik.

While no formal engagement has been announced, a source previously told PEOPLE that Hadid and Cooper are "serious about each other, but an engagement would be a big step." The source added, "Neither are looking to rush anything, but they're very happy together."

In a March interview with Vogue, Hadid praised Cooper's encouragement, stating, "I respect him so much as a creative. He gives so much to me: encouragement and, just, belief."