Crazy Town rocker Shifty Shellshock has been arrested for drug possession in Los Angeles.

The frontman, who has tried to beat his drug demons during two appearances on reality show Celebrity Rehab, was shopping with his girlfriend at a Ross Dress for Less store on Thursday night when they became embroiled in an argument.

The altercation allegedly turned physical and a shop employee called the police when Shellshock reportedly grabbed the woman by her arm.

Cops questioned the musician, real name Seth Binzer, over the incident and a body search is said to have turned up a stash of rock cocaine.

He was taken into custody and is being held on a charge of possession of a controlled substance, according to TMZ.com.

The 37 year old has also previously attempted to deal with his drug issues on two installments of Celebrity Rehab spin-off, Sober House.