Gwen Stefani Celebrates Son Zuma's 16th Birthday with Sweet Throwback Photos: 'We Love U SO Much'

The singer shares her three sons — Apollo, Zuma and Kingston — with ex Gavin Rossdale

Gwen Stefani/Instagram Gwen Stefani (right) and Zuma
Gwen Stefani/Instagram Gwen Stefani (right) and Zuma

Gwen Stefani's middle son is officially 16!

On Thursday, Aug. 22, the singer, 54, shared a Reel on her Instagram filled with sweet throwback photos of her son Zuma as he celebrated his 16th birthday. The proud mom included baby photos and pictures of Zuma growing up, as well as a few clips of the teenager playing guitar.

"Happy Sweet 16, Zuma !! we love u SO much !! 🎉🎂," she wrote in her caption.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

Related: Gwen Stefani's Son Zuma, 15, Makes Stage Debut as He Performs at Stepdad Blake Shelton's Oklahoma Bar

Stefani shares sons Apollo, Zuma and Kingston with ex Gavin Rossdale, 58.

On Wednesday, Aug. 21, Zuma came out on stage with Rossdale at his band's New Jersey concert. As the teenager joined his dad, Rossdale had the crowd sing "Happy Birthday" to him in honor of his 16th birthday.

In the center of the stage, Rossdale had a cake wheeled out, as well as gold "16" balloons for Zuma, who gave his dad a sweet hug at the end of his birthday song.

Zuma later joined in and played guitar alongside Rossdale as his band Bush played their hit song "Comedown."

<p> Emma McIntyre/Getty </p> From left: Kingston, Gwen Stefani, Apollo, Blake Shelton and Zuma

Emma McIntyre/Getty

From left: Kingston, Gwen Stefani, Apollo, Blake Shelton and Zuma

Related: Gavin Rossdale's Son Zuma Joins Him on Stage to Sing with Dad and Celebrate His 16th Birthday (Exclusive)

"It was so incredible to celebrate Zuma's 16th birthday with 18,000 people screaming happy birthday," the proud dad told PEOPLE of the special moment. "The Jersey fans couldn't have made it a more special night for me and my family. Thank you."

At the end of July, Zuma made his stage debut when he joined stepdad Blake Shelton at his Ole Red bar in Tishomingo, Okla.

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

Before he walked out on stage, Shelton introduced his stepson, with the two wearing matching cowboy hats. In a fan video, Zuma could be seen sitting down as Shelton adjusted his microphone and went, "This is him, everybody!"

In the video, the "God's Country" singer stood to the side as Zuma covered Zach Bryan's song "Oklahoma Smokeshow," sitting on a stool while singing and playing the guitar.

For more People news, make sure to sign up for our newsletter!

Read the original article on People.