In the latest “Diary of a Song” episode, Lil Nas X is joined by the producer YoungKio — who didn’t even know he was a part of “Old Town Road” until he heard it in a video meme — and Billy Ray Cyrus, who lent the song another layer of novelty and outlaw credibility. The video also features cameos by the influencers @nicemichael and @elitelife_kd, who were crucial to the track’s early rise.

"A collaborative music/spoken word project." A collection of YouTube videos of people playing various instruments all in the B-flat key. Start and stop and fade them each in any way at any time. This is awesome.