who: Tegan and Sara when: April 19 - 9PM - $25where: Kate Buchanan Room, HSU Campus, Arcata 707-826-3928what: Folk-rock duo Tegan and Sara first burst onto the Canadian music scene in 1998, when they earned the highest score in history at Calgary's Garage Warz competition. Their quick rise didn't stop, for their melodic acoustics and charming stage personas led to a slew of dates with Sarah McLachlan's Lilith Fair that same year and a record deal with Neil Young's Vapor Records. In 2007, Tegan sang backup on a song on new Sire labelmate Against Me!'s album New Wave, and the twins, who had by now moved far from the singer/songwriter mold and were more interested in exploring pop, punk, and indie rock, came out with Christopher Walla (of Death Cab for Cutie) who produced The Con.