The 52-year-old No Doubt singer made a triumphant return on the NBC show during the season 21 results episode that followed performances on Monday by the Top 10.
'It's so exciting to be here!,' exclaimed Gwen who wore a white lace dress along with a black bow tie for her guest appearance.
Newly married: Gwen Stefani and Blake Shelton excitedly showed off their wedding rings on The Voice on Tuesday after getting married in July at the country star's Oklahoma ranch
'Gwen, do you take Blake to be your husband...,' said show host Carson Daly, 48, with a smile.
'I was gonna say, this is actually the first time we've been at The Voice together since we've been man and wife. You married us,' Gwen said pointing to Carson.
Blake, 45, and Gwen then both flashed their wedding rings enthusiastically for the camera.
'Look at that. That's it,' Blake said as he showed off his ring.
Wedding rings: Blake, 45, and Gwen, 52, both flashed their wedding rings enthusiastically for the camera
Gwen then introduced her season 19 winner Carter Rubin, 16, who performed his new song Horoscope.
The results show saw the elimination of Kelly Clarkson's singer Jeremy Rosado and Ariana Grande's contestant Holly Forbes after they finished in the bottom three along with John Legend's singer Jershika Maple.
Jershika won the Instant Save after delivering a stellar rendition of What Is Love from the Empire soundtrack and advanced to the semifinals.
Past champion: Gwen then introduced her season 19 winner Carter Rubin,