But much to the dismay of Selenators everywhere, Rhett has admitted that he's still on the fence about whether or not to include the track on his album.
"Anytime the country world melts into the pop world, it's an interesting conversation," he told Rare Country.
"A lot of things need to go correct for it to work out. But yes, Selena did sing a song of mine. It's still sort of up in the air if it's going to actually make the record," he added.
Unsurprisingly, loads of Selena fans have expressed their disappointment via Twitter, urging the country star to include the Sel duet on his album.
Alrighty Thomas, you heard the people.
Hand it over and no one gets hurt!