Supertramp's 'Crime of the Century' started me off into music in the first place. I was rocking out to that music from the age of seven thanks to my dad's LP collection . . . and it was the gateway drug that led to Pink Floyd, Zeppelin, Cream, Hendrix, The Who, The Doors, and all of that awesome stuff from the 70s.
The Pixies and Nirvana blew my mind when I was in highschool . . . and are the reason I picked up a guitar. Learning to play guitar and jam with others really led to an appreciation of blues, which led to the discovery of Buddy Guy, Muddy Waters, BB King, and Stevie Ray Vaughn.
Then in university I started to branch out from blues rock and play an awful lot of funk. Curtis Mayfield, Niles Rodgers, Stevie Wonder, Bootsy Collins, Parliament, Isaac Hayes, Funkadelic . . . eventually I learned to play bass because of this stuff.
Coltrane's 'Giant Steps' and Thelonius Monk's 'Straight, No Chaser' albums proceeded to rock my world, and are what got me really interested in jazz.
Every few years I get interested in a different era or genre of music, but the stuff above has been the soundtrack of my life and will always be a part of me now.