Singer Shifty Shellshock has been in a coma in a Los Angeles hospital since Thursday, TMZ reported Tuesday. Sources close to the former Crazy Town singer, and \"Celebrity Rehab\" and \"Sober House\" alum, said he is completely unresponsive. Although it is unclear what caused the coma, the insiders told TMZ they believe it was drug-related. Shellshock\'s real name is Seth Brooks Binzer. He is 37.