Miranda Lambert is currently burning up the road on her 2017 Highway Vagabond Tour, and on Sunday night (March 12), Lambert's stage got even hotter when she brought out her boyfriend and fellow singer-songwriter Anderson East to surprise fans with a fiery duet. Click play above to watch the two perform together in Bossier City, La.

Lambert's 2017 Highway Vagabond Tour boasts Old Dominion and Aubrie Sellers as opening acts, but when East danced onstage to sing the Faces' hit "Stay With Me" with his girlfriend, the crowd went positively wild. "Stay With Me" comes from the Faces' 1971 album A Nod Is as Good as a Wink ... to a Blind Horse and was written by the band's Rod Stewart and Ronnie Wood; the song is filled with cheeky lyrics about a one-night stand and made for a rocking romp for Lambert and East to perform.

From start to finish, it's easy to tell that the couple is having a blast onstage together during the above performance: They're dancing, flirting and working the crowd with huge smiles on their faces. Lambert couldn't even contain herself, planting a kiss on East's cheek as soon as he reached her side.

East and Lambert went public with their relationship in early January of 2016, a little over a year ago. Their duet in Bossier City isn't the couple's first performance together: On Valentine's Day in 2016, the two performed the classic Mariah Carey anthem “Always Be My Baby” together during one of East's shows, and just a couple of months later, Lambert surprised fans by joining her beau for a cover of the Temptations hit "My Girl" ... and Morgane and Chris Stapleton were there, too! East also joined Lambert, and Lambert's father, onstage in Chicago in late January.

Miranda Lambert + Anderson East Walk the 2016 CMA Awards Red Carpet Together

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