The Evolution Of 'Old Town Road': BTS Rapper RM Joins Lil Nas X On Third Remix, 'Seoul Town Road'

(CBS) -- "Old Town Road" was originally kicked off the Billboard country chart, but that that only seemed to help the hit song's popularity skyrocket. In fact, since his drama with Billboard, Lil Nas X has had success after success with his trap-country hybrid — and now he's got one more. A third remix — and the fourth iteration of the song — dropped on Thursday, but a different artist was featured on the track: K-pop rapper RM.