Date: August 4, 1996
Event: The Big Stink Fest
Leg: Odelay Promotions / Non-Touring Gigs
Venue: Estacada Timber Bowl
Country: United States
The only song I know about this concert is "Devils Haircut" because there is a video on Youtube claiming to be from this show. I can't embed it, but Beck is wearing his seacaptain costume, and it's awesome.
Watch it here
Also I've seen a couple of posts from people who recorded the whole thing, but not sure if their recordings ever made it to the general fan population. Beck only played for about 45 minutes, though, as there were a lot of bands.
[people and bands
Bass: Justin Meldal-Johnsen
Drums: Joey Waronker
Guitar (Electric): Beck Hansen, Smokey Hormel
Keyboard / Synthesizer: Theo Mondle
Other Band: Everclear, Filter, Magnapop, No Doubt, Primitive Radio Gods, The Prodigy
Vocals: Beck Hansen