Andy Cohen Takes 4-Year-Old Son Ben to See John Mayer's Concert: 'Hear Uncle John's Band!'

Andy Cohen revealed the 'Gravity' singer's gig at Madison Square Garden was his son's first concert

John Mayer had an extra special guest at his latest gig.

The musician’s close friend Andy Cohen took his 4½-year-old son Ben to the New York leg of Mayer’s SOLO tour at Madison Square Garden on Wednesday.

Cohen, 55, later shared a series of sweet snaps from the concert on his Instagram with a caption referencing the Grateful Dead: “Come, hear Uncle John’s Band! First concert of what I hope will be a long run of them!”

In the first image, Cohen can be seen holding his son’s hand as they watch Mayer, 45, perform from the side of the stage. This was followed by a second shot of Ben on his dad’s shoulders. In the third photo, the Watch What Happens Live with Andy Cohen host showed off Ben’s concert pass which read, “John Mayer SOLO Ben Cohen.”

“SO sweet!!!!❤️❤️❤️,” wrote former Top Chef host Padma Lakshmi in the comments section, while Real Housewives of Salt Lake City star Angie Katsanevas added, “Little Ben on Dads shoulders…best seat in the house🩵🩵🩵Or should we call it, first chair😉Have fun!”

Related: Andy Cohen’s Son Ben, 4, Admits He Hides and Eats Chips Every Morning — See the Video!

Mayer still has plenty of dates left on his North American tour, including stops in Boston, Philadelphia, Nashville, Tampa and Indianapolis.

On Monday, the singer made an appearance on WWHL with Cohen to discuss the gigs, and while on air the longtime friends also divulged the secrets of their bond.

In a fun game titled “Hot Po-Titty”, the pair had to pass each other Real Housewives of Orange County star Tamra Judge's breast implant and name things they love about their friendship in 30 seconds.

Related: Andy Cohen Celebrates Relatable Parenting Moment with Son Ben: ‘He Let Me Sleep Til 8:30!'

“People love to pester John and me with questions about the inner workings of our friendship, so right now we’re explaining what truly makes us the ‘breast of friends,' " Cohen told viewers, before starting the game by saying he loves how “loyal” Mayer is.

Mayer responded that Cohen is “very caring to everyone around you.” Cohen then joked, “I love your supple lips,” with Mayer adding, “I love your FaceTimes where you’re laying in bed in a hotel room and you’re bored.”

The “Gravity” singer also shares a special relationship with Cohen's son Ben and was by the little one’s side when he celebrated his 3rd birthday in February 2022.

In a carousel of photos shared by Cohen from the day, Mayer could be seen carrying the toddler as they posed together with smiles on their faces.

"Ben had the best 3rd birthday ever!!! ♥️♥️♥️♥️ 🍰" the Bravo star captioned the post, with Mayer writing in the comments section, "A really really special and joyous day.”

The sweet snap was taken when the singer joined the father-son duo at Cohen’s Hollywood Walk of Fame ceremony, which took place on the same day as Ben’s birthday.

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The musician went on to pay tribute to his friend during the ceremony with a heartfelt speech about the presenter and his devotion to being a dad.

"I love Andy more than I can tell you," he said. "He's a brilliant human being, a hilarious cohort, a loving son and brother — and more recently he's become a proud, engaged and deeply devoted father."

Chat show host Cohen has two children who were carried by separate surrogates but are "biological siblings" — Ben Allen, born on Feb. 4, 2019 and Lucy Eve, born April 29, 2022.

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