Dave Matthews

Talking to Dave Matthews Band violinist Boyd Tinsley was like looking into the eyes of God for a TMZ camera guy who claims to be the biggest DMB megafan ever!! Yeah, they all think they're the biggest one.

Dave Matthews took center stage at a karaoke bar in Hawaii yesterday -- where he proved he can still get funky ... even without that dude with the violin. TMZ has obtained photos of Dave at Sansei Seafood Restaurant and Sushi Bar in Kihei, Maui -- where he performed the Rick James classic "Super…