In this Aug. 30, 2013 file photo, Swedish DJ-producer, Avicii poses for a portrait in New York.(Photo by Amy Sussman/Invision/AP, File) Artist, DJ and producer Tim Bergling, aka Avicii, has died in Oman aged 28. "It is with profound sorrow that we announce the loss of Tim Bergling, also known as Avicii,"...