First song to "Blow You Away"...

I'm showing my age -- "Hound Dog," Elvis.

"School" by Supertramp. I bought the record because I liked the cover and wasn't prepared for the sonics and prowess of this record. Haven't been the same since.

"21st Century Schizoid Man" by King Crimson. 'Nuff said!
OK, maybe not. Years later, "Sound Chaser" by YES from the LP "Relayer" changed my peception of what music could be and what musicians could do, and re-shaped my guitar playing.

"Keep Your Knockers Up"- Rusty Warren- Played on my parent's turntable, I even remember the clicks and pops.

"You Ain't Nothin But A Hound Dog"-Elvis- Played on my older sister's turntable. Black album cover w/ pink letters. Probably my start down the road of that sinful rock n' roll.

"Honey Don't"- Carl Perkins- Played it at the neighbor's house at a slower speed so we could make sure he was saying the "f-word".

"Maybelline"-Chuck Berry- On a neighbor's LP and on the radio. Helped with the push towards fast cars and loose women.

The very first? I'm not sure I can remember back that far, but it's a good bet it was either Eric Clapton "Layla", or maybe Traffic "Low Spark of High Heeled Boys".