A group called Improv Everywhere decides that an unknown band, Ghosts of Pasha, playing their first ever tour in New York, ought to think they're a smash hit. So they study the band's music and then crowd the performance, pretending to be hard-core fans. Improv Everywhere just wants to make the band happy—to give them the best day of their lives. But the band doesn't see it that way. Nor does another subject of one of Improv Everywhere's "missions." (31 minutes) Live Performance • Music