John Graham Pettigrew (voc), Ernest Rea (g), Peter Grant Nagle (b, harp) and William Hugh Alexander Brown (dr) from Glasgow formed a band in 1968, named after the first song on the first Cream LP. Musically, however, the similarities were fewer. The quartet played a heavy, dark, psychedelic blues rock and hard rock with impressive guitars and occasional female backing vocals. In 1969, they recorded their first and only LP, produced by Trevor Walters, in just three days at De Lane Lea Studios in London. In the same year, their debut album was released in a limited edition of only 500 copies on the legendary small, short-lived label Stable Records. Like the other obscure bands on that label, such as Sam Gopal, Jaklin and The Deviants, N.S.U. fared no better.

Their debut album, despite a presentation at the Royal Albert Hall, went completely unnoticed and did not sell. Due to this lack of success, the group soon split up. Today, the UK original is a sought-after and expensive collector's item.