After celebrating her birthday, Jennifer Lopez is flawlessly going from beach cozy to city chic.

The Golden Globe nominee, 55, arrived back in New York City on Thursday after ringing in her 55th birthday in the Hamptons without husband Ben Affleck.

She looked cozy as she stepped off a tour bus in an off-white sleeveless onesie, checking into her H๏τel.

Lopez layered the ensemble with a matching fuzzy ankle-length cardigan with long billowy sleeves.

The This Is Me… Now artist finished the look with gold aviator sunglᴀsses, matching hoop earrings and white sneakers, carrying a white alligator skin Hermes Birkin handbag.

She stepped out shortly after for an early lunch at Balthazar in SoHo, where she served another stylish summer white look.

Lopez showed off her taut tummy in a white crop top, layered under a matching blazer with cutouts down the sleeves.

The Hustlers actress paired the look with some denim drawstring pants and chunky open-toe cork heels.

She finished the look with same gold sunglᴀsses and earrings, opting for a black Birkin this time.