Grease star Jeff Conaway in coma after drug overdose

Jeff Conaway, who played Kenickie in the hit movie musical Grease is in a coma after an apparent drug overdose. Reports are that the star is in Encino Hospital Medical Centre in Los Angeles with pneumonia and is currently unconscious, the LA Times reports. Jeff has struggled with drug problems for years and has been addicted to cocaine, alcohol and painkillers. First finding fame in the hit musical Grease, Conway went on to star in the hit television show Taxi.