I'll add the grateful dead 7/12/90 RFK stadium (I think that's the date, definitely the rfk summer 90 show). Rained for my whole ride up from nc (on a motorcycle), then was super hot and clear all day and for the opener, then during feels like a stranger, the clouds opened up again, and turned rfk into a fishbowl. My first dark star, my first true mindblowing experience at a concert. My first case of trenchfoot.