John Cale & Lou Reed - the opening to “All Tomorrow’s Parties” could never be mistaken for anyone else.
John Coltrane also has a very easily identifiable sound like nobody else, likewise the late & much lamented Mick Ronson with his signature Les Paul power-chords, ditto Steve Jones (Sex Pistols) who can be spotted on many other records & you know exactly who it is just from the sound - check out Andy Taylor’s “Thunder” album for a great example of this as the opening track could not be any other guitarist but SJ.
Tom Scholz.
ROFL!