Who said violin was old fashionned?br br The violonist is Lindsey Stirling (she just ended 2nd on King of the web, have a look here : br Jake Bruene is the singer and Frank Sacramone is at the keytar :)br br Jake Bruene:br br Frank Sacramone:br br Lindsey Stirlingbr br 'Party Rock Anthem' as originally by LMFAObr Written by: Stefan Gordy, Skyler Gordy, Jamahl Listenbee, Peter Schroederbr Published by: Kobalt Music Publishing