A person who bashes all other concerts/venues except the one that he/she is going to. A concert snob always has to one-up others' musical preferences.
Jimmy: " Hey, I'm so excited for the concert this weekend, it's at ____"
Gunther: " Oh yeah? Well I'm going to the ____ concert and it's at the ____ and it's so much nicer and better and cooler than yours. And tickets were a million dollars."
Jimmy: " Stop being such a concert snob. You're pissing everyone off."