Chaka Khan in rehab over prescription pain medicationDON ARNOLD/GETTY IMAGES Khan's representatives have not revealed why the singer is taking pain medication. Chaka Khan has checked into rehab to battle an addiction to prescription pain medication. It is not known if Prince's death had anything to do with Chaka Khan's decision to check into rehab. Khan's representatives have not revealed why the singer is taking pain medication. She has battled drug and alcohol addiction in the past, and has been to rehab several times.

Source: Stuff July 10, 2016 21:17 UTC