Gwen Stefani and Blake Shelton may not be getting married anytime soon, but these two are just as in love as they ever were: a fact Gwen proved today when she gave us flashbacks to that epic Billboard Music Awards duet and got all mushy via social media in honor of her man’s big 4-0.

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)

Posting this absolutely adorable throwback, Gwen wrote “Happy birthday to @blakeshelton literally my favorite person gx.”

She shared similar sentiments on Twitter, swapping out the photo for another one of Blake as a dashing young lad, along with the added hashtag “#superbabe.”

Blake, for one, was absolutely thrilled to receive the well wishes, retweeting her sweet message with one of his own.

Gosh, you two! We’re slightly overwhelmed by all the love freely flowing in this mushfest!

Are they the cutest, or WHAT?

Happy birthday, Blake. You’ve snagged yourself a real gem (though you didn’t need us to tell you that).

Are you excited to see these two so happy together? Let us know over @BritandCo!

(Photos via @gwenstefani, @BlakeShelton and Kevin Winter/Getty)