The Afro Celt Sound System is a musical group founded in 1995 that fuses modern dance rhythms (trip-hop, techno, etc.) with Celtic and African influences. It was formed by Grammy-nominated producer-guitarist Simon Emmerson, and is considered to be somewhat of a world music supergroup, often having a wide range of guest artists on their albums. Their albums have been released through Peter Gabriel's Real World Records and they are also reportedly the best-selling band on the label, only exceeded in sales by Gabriel himself.