Sean Tillmann (aka Har Mar Superstar) is an American songwriter & performer who makes R&B / Pop / Soul music.  What started as a one-man show in 1999 has grown into a full-band revue.  Often noted as a premier live act, Tillmann works the crowd and earns his keep with sweat equity.  A grueling tour schedule has made this Minneapolis, MN outfit a show not to miss.