Parton was the frontman of Strange Fox, who were nurtured by Tony Hatch in the early 1970s.
[1] Parton achieved songwriting success writing songs for Sweet Sensation in the mid-1970s, namely "Sad Sweet Dreamer" which was a number 1 single in the UK, and "Purely by Coincidence" which also charted.
[3] Parton then sang a cover version of Stevie Wonder's "Isn't She Lovely" which he again co-produced with Hatch.
When the original contracted singer (Marcel King from Sweet Sensation) was unable to re-create Wonder's vocal nuances, rather than dispose of the backing track, Parton sang the lead vocal, and it was decided to issue this version.
[1] He has generally sung and played guitar with local bands from North Staffordshire.