She’s not just a girl. Blake Shelton expressed his disbelief about dating Gwen Stefani during a Thursday, August 4, appearance on Late Night with Seth Meyers.

When Meyers told Shelton, 40, how excited he was about the country singer’s relationship with the No Doubt frontwoman, the “Came Here to Forget” crooner said that he is still shocked by their unlikely romance. “I still can’t believe it,” the Voice coach shared before joking, “I thought she must have, like, some vision problems … Maybe she needs help, I don’t know.”

When the 42-year-old late-night host pressed Shelton about his familiarity with Stefani’s song catalog prior to their romance, the Oklahoma native admitted that he didn’t know his girlfriend was responsible for some pretty big hits.

“I didn’t think I knew much of her music until I, until you go to one of her shows, and I remember — this has been like a month ago — she flew into Oklahoma and I was driving to pick her up at the airport,” Shelton recounted to the SNL alum. “And I was flipping through XM radio and I stopped on this song and I was like, ‘That voice sounds like Gwen. What in the hell is this — why don’t I know this?’”

“It’s this song called ‘It’s My Life,’ which was a huge record for [Stefani’s band No Doubt],” he continued. “And I’m going, ‘I didn’t know Gwen sang that song.’ I’ve always known ‘Hey Baby.’ I didn’t know she sang that freakin’ song. All these songs. It’s like, ‘Wow, that was you?! That’s you and we’ve kissed? Wow, that is amazing!’”

Despite not knowing much of Stefani’s discography, Shelton asked the pop star to collaborate on his track “Go Ahead and Break My Heart,” from his 2016 album If I’m Honest. When Shelton stopped by the Today show on Thursday, he explained that he wrote the tune in an effort to woo the L.A.M.B. fashion designer.

“It’s funny because I started the song to just try and impress her because at that time, we were getting to know each other,” he said. “And it was like, ‘I’ll write her a song, that’s what I’ll do.’”

Back in March, Stefani opened up to Refinery29 about how bonding with Shelton over their public divorces — from Gavin Rossdale and Miranda Lambert, respectively — served as inspiration for her latest LP, This Is What the Truth Feels Like.

"I think that when you go through what I went through, or what I’m still going through, you think you’re hopeless. You don’t know what’s going to happen,” she told the website. “You panic. It was a really super-unexpected gift to find a friend, somebody who happened to be going through the exact same thing as me, literally mirroring my experience. I don’t think it’s an accident that that happened. It saved me."

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