Belated birthday wishes are in order for Gwen Stefani's son, Kingston Rossdale, who turned 14 on May 26. To celebrate the occasion, Stefani shared a sweet snap of her oldest child with ex-husband Gavin Rossdale.

In the photo, which was taken on the beach, Kingston smiles at the camera while wearing layered necklaces, including one with his name. Proud mom, Stefani, captioned the post, "happy 14th bday to my first born son -thank u God for [making] me HIS MAMMA GX #loveukingstonjames"

Lovely photo and caption aside, we couldn't help but notice how much the two look alike, from brown eyes to the subtle smile.

gwen stefani son
@gwenstefani/instagram; Jim Spellman/getty images

Stefani also shared a cute video of her boyfriend, Blake Shelton, kissing Kingston on the cheek, captioning the moment, "happy b day kingking gx @blakeshelton," with lots and lots of kissy face emojis.

Kingston is the oldest of Stefani's three sons, followed by younger brothers Zuma (11½) and Apollo (6).

Happy birthday, Kingston!

RELATED: Exclusive: Gwen Stefani Reveals Her Favorite Makeup Tip for Ladies Who Wear Glasses

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