Fans were not aware that the celeb had a baby on the way

For someone who was known for courting publicity and revelling in the limelight for the early part of her career, Paris Hilton sure knows how to keep a secret.

The former socialite and heiress has surprised fans with an Instagram post that apparently announces the birth of her first child with husband Carter Reum.

The post features a baby's fist wrapped around Hilton's manicured thumb, with the caption "You are so loved already" and accompanied by a blue heart, leading many to assume that the baby is a boy.

The 42-year-old Hilton married businessman Reum in 2021, and the baby is believed to have been born via a surrogate.

Celeb friends including Chrissy Teigen, Kris Jenner, Lindsay Lohan and Demi Lovato congratulated the couple, while Kim Kardashian said "So happy for you guys!!! 🤍"

Hilton is set to publish her memoir, 'Paris', in March.