Celebrity Parents Gwen Stefani Wishes Blake Shelton a Happy Father's Day: 'Thank You for Helping Me Raise These Boys!' Gwen Stefani shares three sons, Kingston, 14, Zuma, 11½, and Apollo, 6, with ex-husband Gavin Rossdale By Ally Mauch Published on June 21, 2020 03:30 PM Share Tweet Pin Email Blake Shelton with Gwen Stefani's sons Kingston (L) and Zuma. Photo: Gwen Stefani/Instagram Gwen Stefani is thanking her boyfriend, Blake Shelton, on Father’s Day for helping her raise her three sons. “Happy father’s day @blakeshelton,” the singer, 50, wrote on Instagram. “Thank u for helping me raise these boys!! #weloveyou!” Along with the sweet message, Stefani shared a collection of photos featuring Shelton, 44, with her boys, Kingston, 14, Zuma, 11½, and Apollo, 6, all of whom she shares with her ex-husband Gavin Rossdale. On Sunday, Rossdale shared a message he received from son Kingston, who wrote, "Happy father's Day dad thanks for everything @gavinrossdale." In addition to celebrating Father’s Day, Stefani threw a Hawaiian-themed party for Shelton’s 44th birthday, complete with decorations, Hawaiian shirts and a custom cake featuring figurines of the couple sitting on a red tractor. 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 juicy celebrity news to compelling human interest stories The mom of three documented the party on her Instagram Story Sunday and showed snapshots from the celebration, including photos of her youngest son Apollo. Earlier this week, Stefani marked Shelton’s birthday with a selfie of the couple on Instagram. "Happy birthday @blakeshelton thank u for being my best friend," she wrote, adding the hashtag "#luckyme." In the picture, the “Sweet Escape” singer planted a kiss on Shelton's cheek. Gwen Stefani Celebrates 'Best Friend' Blake Shelton's Birthday with Sweet Selfie: 'Lucky Me' Smithworks Vodka Stefani and Shelton, who are both coaches on The Voice, have been together for nearly five years following Stefani’s split from Rossdale. Amid the coronavirus pandemic, the couple has been social distancing at Shelton's ranch in Oklahoma with her three boys. "My mom and step-dad live about 10 miles from here, I haven't seen them since the middle of March except waving from the truck window. That's about it," Shelton said during a virtual appearance on The Tonight Show Starring Jimmy Fallon in April. "We haven't left. I had to cancel my tour, we were in Omaha, Nebraska and we were actually building the production that day and finally just decided — that's when pretty much the bottom was falling out of any of the touring and live events — so we just canceled and Gwen and I immediately came here and we haven't left."