Stephen "tWitch" Boss, dancer and "Ellen" show DJ, dead at 40

DJ, dancer and producer tWitch, whose real name is Stephen Boss, has died, according to the Los Angeles County Medical Examiner-Coroner's office. He was 40. 

The medical examiner's office did not immediately release a cause of death.

Boss and his wife, Allison Holker, are both dancers who appeared on the competition series "So You Think You Can Dance?" and "Dancing with the Stars." The couple married in 2013 and marked their ninth wedding anniversary this week. They share three children.