Entertainment Music Gwen Stefani Surprises Husband Blake Shelton with a Birthday Cake – and Serenade! – on Stage The couple had a busy weekend celebrating Father's Day and the country star's birthday By Alexandra Schonfeld Alexandra Schonfeld Twitter Digital News Writer, PEOPLE People Editorial Guidelines Published on June 21, 2022 09:06 AM Share Tweet Pin Email Blake Shelton was feeling the love this weekend! The country star turned 46 on Saturday, and was treated to a birthday surprise during his set at the Country Summer Music Festival in by his wife Gwen Stefani. In a video shared to Instagram and Twitter, Shelton looked shocked as Stefani, 52, walked out on stage with a chocolate cake as the crowd cheered. Grabbing a mic, Stefani turned to the crowd in Santa Rosa, California and said, "Let's do this!" As concertgoers joined to sing "Happy Birthday," The Voice coach was all smiles and took hold of the cake, showing it off and pretending to blow out the candles, which were unlit. Sharing the sweet moment to social media, Shelton wrote, "Thank y'all for all the birthday wishes this past weekend and for y'all who came out to party at Country Summer!!! What a damn time we had.. also.. I love you @gwenstefani!!!!" Blake Shelton Wishes 'Everybody Could Have a Chance to Meet' Wife Gwen Stefani: 'She's Magical' The weekend was a busy one for the couple who also celebrated Father's Day in honor of Shelton, who is a stepdad to Stefani's three sons. The "Hollaback Girl" singer shares Apollo Bowie Flynn, 8, Zuma Nesta Rock, 13, and Kingston James McGregor, 16, with ex-husband Gavin Rossdale. Sharing a video of herself and Shelton performing their duet "Nobody but You" on Instagram, Stefani wrote, "I don't wanna luv nobody but u:) happy birthday @blakeshelton 🥰😘💋🥳." Gwen Stefani and Blake Shelton. Blake Shelton Twitter Blake Shelton. Blake Shelton Twitter The next day, she shared a gallery of photos featuring Shelton and her three boys with another loving message. "Happy father's day @blakeshelton," Stefani wrote alongside her posts on Instagram and Twitter. "We all love u sooooo much god really gave me you for the ups and downs," she added, referencing his hit song "God Gave Me You." On Sunday, Stefani posted another clip of Shelton playfully roughhousing with a giggly Apollo. "Grateful for u every day @blakeshelton ❤️," she captioned the latter video. During a wide-ranging interview in February at this year's Country Radio Seminar in Nashville, Shelton opened up about his life as a stepdad and why he was "all about signing up" for the rewarding role. Gwen Stefani Announces Return to The Voice with Help from Blake Shelton and John Legend "I think Gwen thought when we first started seeing each other that it was just gonna be a moment in time because of that," he said, alluding to her concern about whether he would want her sons in his life. Gwen Stefani and Blake Shelton with her sons Kingston and Zuma. Gwen Stefani/Instagram But Shelton said he didn't think twice about making a commitment to the boys — in part because he had such a fine example in his own father, who married his mother when she already had a baby, his brother Richie. "He took Richie on and raised him from the time he was 1 year old, and my brother never thought of my dad as anything other than his dad," said Shelton, who lost his brother, age 24 at the time, in a car accident in 1990. "The example that my dad set for me was that [child] was not even a consideration [in a romantic partnership]. You got three boys? Awesome! My dad did it. My dad raised me. I could do this. I didn't know what I was signing up for, but I was all about signing up for it," he continued. "And every day I've fallen in love with the boys as much as I do with Gwen." Shelton and Stefani are set to celebrate their first wedding anniversary next month, after tying the knot on July 3, 2021 at his Oklahoma ranch.