Feb. 26 (UPI) -- Gwen Stefani enlisted boyfriend Blake Shelton for her son Apollo's Scooby-Doo-themed birthday.
The 48-year-old singer and 41-year-old country star dressed up as Daphne and Shaggy while throwing Apollo, Stefani's youngest son with ex-husband Gavin Rossdale, a fourth birthday party Saturday.
Stefani wore a pink wig, purple dress and green scarf, while Shelton sported a messy blonde wig, green shirt and jeans. Apollo, who officially turns 4 on Wednesday, dressed as Scooby-Doo in a Great Dane onesie.
Apollo and his guests enjoyed a puppet show, bouncy castle and plenty of sweet treats. Stefani shared photos and videos on Instagram Stories throughout the bash, including a picture of herself and Shelton in costume.
Stefani has been accompanying Shelton on his Country Music Freaks tour. She shared a cute photo from Shelton's show Saturday in St. Louis, Mo., that shows the country star giving her a kiss as the moment is projected onscreen.
"#[heart] #countrymusicfreakstour2018 @blakeshelton #stlouismissouri gx," the singer captioned the picture.
#❤️ #countrymusicfreakstour2018 @blakeshelton #stlouismissouri gx
A post shared by Gwen Stefani (@gwenstefani) on
Stefani and Shelton confirmed their relationship in November 2015 following their respective splits from Rossdale and Miranda Lambert. In addition to Apollo, Stefani and Rossdale share 11-year-old son Kingston and 9-year-old son Zuma.