Gwen Stefani turns 50!
The legendary No Doubt frontwoman is clocking in a whole new century and her boyfriend, Blake Shelton, is giving her the sweetest gift of all!
The country singing sensation paid tribute to his leading lady on her birthday by sharing a very public, and very sappy, love note.
Pouring his feelings for Stefani out on social media, which is very millennial of the star, Shelton said he loved her so much it was "stupid."
"Happy Birthday @gwenstefani!!!" he wrote. "I love you so much it’s actually stupid... And possibly illegal in the state of California."
The "Hell Right" singer isn't usually one to get sappy, so he must really mean it when he says he loves her.
This is not the only milestone Stefani and Shelton are gearing up for. The singer's will celebrate their four-year dating anniversary next month!
The singing duo met on the set of "The Voice" in 2014 and sparked up a romance several months later.
You'll recall, Shelton was famously married to country star Miranda Lambert and Stefani was Gavin Rossdale's wife.
It's unclear what Shelton has up his sleeve for his girlfriend's special day, but he has a lot to compete with.
Stefani went all out for his birthday by throwing an epic pizza party at his home. She also made sure to gift him a sweet welcome sign for his Oklahoma ranch and had her children -- Kingston, 13, Zuma, 10, and Apollo, 5 -- make him cards.
Posting a tribute to Shelton, Stefani wrote, “Can’t believe [you’re] mine ❤️🤷♀️ #soooooolucky!!!!"