Carson Daly revealed the news on the 'Today' show Friday.
The longtime couple has been dating since 2015.
The singer also declared that he'll do whatever it takes to win Tuesday's finale of 'The Voice.'
ET spoke with 'The Voice' coach about what his girlfriend, Gwen Stefani, is teaching him, and meeting BTS.
Gwen, Blake and her kids enjoyed a fun family outing at Knott's Berry Farm over the weekend.
From New York City to Hollywood and everywhere in-between, see how the A-listers are living it up right now!
The longtime couple was celebrating the 13th birthday of Stefani's son, Kingston.
A source tells ET the two 'truly are best friends.'
The couple has been together more than three years.
Gwen Stefani and Jeremy Scott arrived at the 2019 Metropolitan Museum of Art Costume Institute's annual benefit together.
The singer hit the red carpet in a white, leotard-style outfit adorned with colorful jewels then wrapped herself in a snuggly fur coat.
ET spoke with the singer-turned-actor while on the red carpet at the premiere of his new film, 'UglyDolls,' in theaters May 3.
The family was all smiles at the Los Angeles premiere on Saturday.
The 49-year-old singer was feeling the love on Throwback Thursday.
