On Monday (Oct. 16), Post Malone earned his first ever No. 1 song when his 21 Savage-assisted record "rockstar" hit No. 1 on the Billboard Hot 100. While it's not shocking for the Stoney artist to make it to the top, how he may have made it is a different story.

A quick search on YouTube for Post Malone's "Rockstar" will bring back a Republic Records upload of the track, initially discovered by New Yorker writer Matthew Trammell. While the upload seems like the official song, the video is actually just the chorus repeating over and over again, and it happens to be the exact same length as the actual track. With over 41 million streams on YouTube, the chorus-only version of the song may have counted towards streams of the song, helping it go No. 1.

According to Billboard's criteria, YouTube streams count towards a song's position on the Billboard 100, and plays of that video would count as an official chart-qualifying stream.

“U.S. streams for that clip do contribute to our songs charts, the same way an instrumental track or a remix of song would count towards the main song’s placement if downloaded or streamed,” said Billboard in a statement.

Recently, there's been debate over whether YouTube streams should count towards song's and album's positions on the chart, and now, with official videos featuring just some of a song, a new argument will surely shake up the music industry.

XXL has reached out to Republic Records for a comment. Check out the "rockstar" clip below.

See 21 of Hip-Hop's Biggest First-Week Sales in 2017 (So Far)

More From XXL