The couple sparked rumors they may have secretly tied the knot when the No Doubt singer was spotted rocking what looked like a wedding band over the weekend.
In photos obtained by Page Six, Stefani can be seen wearing a sparkling diamond band on that finger along with her gigantic engagement ring.
The 51-year-old beauty was photographed sporting the extra diamonds during a day out with the 44-year-old country star and her 7-year-old son in Santa Monica, California.
Stefani was all smiles, keeping it casual in a pair of distressed jeans, oversized polo, and baseball cap.
She wasn't trying to hid the blinding new bling either.
Holding onto a large water bottle with her left hand, Stefani proudly displayed the attention-grabbing rings.
On Friday, the Hollaback Girl singer teased their upcoming nuptials by posing a fun picture from her bridal shower.
Sipping on a glass of wine, Stefani beamed with happiness while holding up a present and writing, "SHE’S GETTING MARRIIIEEEED" on top of the photo.
In December, a source told Us Weekly, the two planned on getting married in a private Oklahoma chapel "early next year."
“Blake built a chapel on the grounds of his Oklahoma ranch. He did it himself with help," the insider said, adding that Stefani gave her "input."
“It’s really a tribute to their love. They are going to get married in the chapel, most likely early next year," they added.
The couple sparked romance rumors in 2015. At the time, Shelton had split from his then-wife, Miranda Lambert. Stefani was going through her divorce from Gavin Rossdale.
They couldn't keep their relationship secret for long.
In 2020, Stefani and Shelton took their future to the next level.
The country singer popped the question last fall after five years together.
He recently joked about how shocked he is that Stefani said "yes!"
"Nobody's more shocked about this than I am. It makes no sense," Shelton told Stephen Colbert. "I can see that you're looking at that picture right now and thinking, 'What the hell is happening?'"
Radar has reached out to both Stefani and Shelton's reps.