On this day in 1975, Led Zeppelin played the first of two sold-out nights at the Pacific Coliseum in Vancouver, Canada. The set list included: 'Rock And Roll', 'Stairway To Heaven', 'Whole Lotta Love', 'Black Dog' and 'Heartbreaker'.
The big heartbreaker-tickets were only $7.50.
Reach into your way back machine, can you remember the cheapest show you attended?
Here's some audio from what was probably an amazing show: