John Legend Celebrates 'Beautiful' Son Miles on His 6th Birthday: 'So Smart, Loving'

The singer and his wife Chrissy Teigen also share daughters Luna Simone, 8, Esti Maxine, 1, and son Wren Alexander, 10 months

John Legend is a proud dad!

The EGOT winner, 45, celebrated his and Chrissy Teigen's son Miles Theodore's sixth birthday on Thursday, May 16.

Legend posted a series of snaps of him and Miles enjoying father-son bonding moments for the occasion. The carousel also showed a smiling Miles holding up festive balloons, relaxing in a lounge chair, posing in a traditional outfit he wore during a family trip to Thailand last month, and playing with one of his younger siblings.

Miles also sweetly posed on the tennis court in one photo and enjoyed a calming moment with Teigen in a body of water in another.

Related: John Legend and Chrissy Teigen's 4 Kids: All About Luna, Miles, Esti and Wren

Legend captioned his social media post, "Our beautiful big boy Miles Theodore turns 6 today!"

He praised Miles for being "so smart, loving and big-hearted and somehow very good at sports despite his father."

"We love you, Miles! ❤️❤️❤️❤️❤️❤️."

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In October, Legend told PEOPLE that Miles takes his big brother duties seriously. Legend and Teigen, 38, also share daughters Luna Simone, 8, Esti Maxine, 1, and son Wren Alexander, 10 months.

Legend admitted that it took Miles "a second to get used to not being the baby anymore."

"But he's really grown into being a really great older brother, and Luna's a wonderful older sister," he continued. "They love holding their little siblings, they love just playing with them, and they're embracing the big sister and big brother role very well."

Related: Chrissy Teigen Celebrates Daughter Esti’s First Day at Preschool with Super-Cute Photo: 'Can't Take it'

Now, the family of six is enjoying their full house. In February, Teigen opened up about having four little ones during an appearance on The Jennifer Hudson Show.

“Everyone goes, ‘How are the babies?’ And I go, ‘There’s a lot of them!’ Like I don’t really know how to respond, it’s just a lot,” Teigen told host Jennifer Hudson. “It’s so good, it’s chaotic, it’s crazy.”

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She added, "There’s so many things that they do every day and they never get tired."

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