Riddim was produced by Glen Brown, first voiced from Glenroy Richards at 1977 (released in 1979) and later Tappa Zukie's version ,named Green Bay Murder was a huge hit.Riddim is also knwn as Green Bay because of this,but it was Wayne Jarrett's Youthman tune from 1979 that gave its name to this riddim,another huge hit!

Barrington Levy made a song with almost the same name named as Jarrett's tune.Junjo's version of the tune is named after Levy's track,Look Youthman.2000 was a year that the riddim was used a lot.
Youthman Riddim

 

Tunes on Youthman riddim