What's better than one talented singer performing in Las Vegas? How about two who just so happen to be boyfriend and girlfriend.
At Sunday's 2016 Billboard Music Awards, Gwen Stefani and Blake Shelton came together to perform their brand-new duet "Go Ahead and Break My Heart."
To nobody's surprise, the pair looked absolutely in love as they sang the romantic tune inside the T-Mobile Arena. And yes, they ended their song with a sweet hug.
Once cameras stopped rolling, an eyewitness told E! News that Blake grabbed Gwen's hand as they relaxed and took their gear off on the stage. "They looked very in love during the song and after," our eyewitness said. "And when Blake grabbed her hand, it was like he was very proud to be up there with Gwen. He looked at her like he is crazy about her."
Earlier this month, the Hollywood couple took center stage on The Voice where they performed the song from Blake's latest album for the first time. Ever since, both parties can't stop gushing about how much the song means to them.
"This is one of my favorite songs I've ever written or recorded," Blake said when the performance was announced. "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."
He added, "The song couldn't possibly be more honest. I'm honored to have written and to perform this song with the great Gwen Stefani. Respect."
As for the lead singer of No Doubt, she can't believe life's twists and turns led her to recording a duet with Blake.
"Yeah, it feels like, 'Wow, that happened.' I can't believe I wrote a song with that guy." Gwen recently shared with E! News at 102.7 KIISFM's Wango Tango. "And then we got a chance to sing it together on The Voice. Like...and everyone got to see that. It was a miracle. It was incredible."
"Go Ahead and Break My Heart" is featured on Blake's new album If I'm Honest in stores now.
—Additional reporting by Alli Rosenbloom
For complete coverage of the Billboard Music Awards, tune in Monday for Live From E! at 12:30 p.m. ET / 9:30 a.m. PT, plus watch E! News at 7 p.m. and 11 p.m. and watch Fashion Police: The Billboard Music Awards at 8 p.m.