When We Are Scientists played the Troubadour in Los Angeles last November, the room was filled to near capacity with young fans who already knew every word of the trio’s music. Keep in mind, the band’s album had not been released in the States yet. On stage, their performance was charismatic, the audience was dancing their asses off and interacting with the band during between song banter that seemed like a bizarre comedy show (and one that was actually funny)....