Violinist for pop-punk band Yellowcard. He gives a great onstage performance, with flipping, singing, and playing. He was never in a rock band before YC, but he was in the orchestra, and damn proud of it. He is also the Gigglemaster
Sean Mackin is a damn good violinist, and giggles when hyper. Yes, he giggles.
by Kiwi June 25, 2004