Juicy J is still getting paid for a track he wrote in the 11th grade.

The raunchy club banger 'Slob On My Knob' is suddenly trending again on Apple Music.

Slob on the knob is trending #1 on Apple Music I wrote that song when I was in 11th grade & the bag still coming in $$$ thank you

— juicy j (@therealjuicyj) September 10, 2017

Have no idea why Slob on my Knob is the top trending song on Apple Music but just know that it makes me very proud of this country right now pic.twitter.com/Kq3u8xTzYz

— Talib Babb (@TalibBabb) September 11, 2017

The song first popped up on Three 6 Mafia's early mixtapes. It got its official release on the 1999 album CrazyNDaLazDayz, the sole LP from the 3-6 spin-off group Tear Da Club Up Thugs.

While never a hit, it's always been a cult classic. And why is it trending now?

This video posted by DJ Tommy Madera, which shows a transition from A$AP Ferg's 'Plain Jane' to Juicy's 'Slob On My Knob.'

plain jane + slob on my knob pic.twitter.com/M6nEx8hSQ6

— tommy (@djtommymadera) September 7, 2017

Here's Juicy on the songs enduring popularity:

[Related: Check Out Juicy J's new mixtape Gas Face.]