Shelton introduced the singers to his lady love, referring to her as "the great Gwen Stefani," and he could hardly keep the adoring smile off his face.
"Blake wanted to bring in an expert to help you guys, so called me," Stefani told the hopefuls.
"A country music expert," Shelton added, playfully, to which she responded, "I’m getting there though! I loved working outside of my lane."
The 39-year-old country crooner couldn’t help but add one addition piece of information about Stefani, noting, "Also, she's hot."
It was a genuinely cute moment between the sweet couple, who have been keeping things super professional while working together
on the program.
Outside of the studio, however, the two just keep getting closer.
Earlier on Monday, Shelton appeared to have spent some quality time with Stefani's youngest child, Apollo
, as the trio went on a hike.
The 46-year-old No Doubt frontwoman documented the adorable outing on Snapchat, sharing a video of someone who sure looks like Shelton ambling around with her 2-year-old son.
Over the weekend, Apollo was insanely adorable
while accompanying his mom to her friend's wedding in Orange County, California. Check out the incredible cuteness in the video below.