He’s a little bit country, and she’s a little bit rock ‘n’ roll, but that hasn’t stopped mommy-to-be Blake Shelton (kidding!) and his flawless girlfriend Gwen Stefani from falling deeply, madly in love.

As if we needed any more proof that these two are, in fact, #relationshipgoals, the two lovebirds sang each other’s praises quite literally as they hit the stage at the Billboard Music Awards together in their most public display of affection yet. As we watched them sweetly serenade one another, we couldn’t help but wonder: Could an engagement soon be on the horizon?

LAS VEGAS, NV - MAY 22: Recording artists Blake Shelton (L) and Gwen Stefani perform onstage during the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada. (Photo by Kevin Winter/Getty Images)

While both have been hitched once before (he to Miranda Lambert and she to rocker Gavin Rossdale), the grins on this pair’s faces, even as they sing, “What are you waiting for, go on and break my heart?” tell us that they just might have what it takes to go the distance, heartbreak be damned.

“This is one of my favorite songs I’ve ever written or recorded,” Blake has said of the tune. (We can’t imagine why!) “It came from a time and place when Gwen and I were beginning our journey together and both experiencing a hard time letting our guards down with each other.”

LAS VEGAS, NV - MAY 22: Recording artists Blake Shelton (L) and Gwen Stefani perform onstage during the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada. (Photo by Kevin Winter/Getty Images)

They certainly don’t seem to be having any troubles now! We can almost hear the wedding bells…

Hey, anything’s possible when it comes to love, right?

Do you think we might see a ring on Gwen’s finger soon? Tell us over @BritandCo!

(Photos via Kevin Winter/Getty)