David Bowie - Ziggy Stardust - title track of the first album I actually loved as an album, not just a bunch of songs.
The Sex Pistols - God Save the Queen - heard in a record shop listening-booth - hairs stood up on the back of my neck, the purchase was made.
Van Morrison - Astral Weeks - made me realise there was a whole world of beautiful music that wasn't just 'rock'.
Bob Dylan - House of the Rising Sun - first song I ever learned on the guitar, from the version on his debut album.
The Rolling Stones - Gimme Shelter - in a small way, helped me realise I had to part company with Christianity