Singer Robin Thicke says he's convinced he has spent more than US$500,000 on marijuana.
The pop star, who was arrested in 2012 in New York City on a pot possession charge, tells Britain's The Sun his habit has cost him a fortune, and he has been trying to give up.
"I do smoke. I do everything I'm not supposed to do. Weed is my crutch, my muse, the lesser of all evil," he says.
"I've spent a good $500,000 on pot. I've tried to quit smoking. I've quit everything once. My buddy runs a store, I can get medical marijuana. When I'm at home, I'm a non-stop chimney."
The Blurred Lines star was detained by police in 2012 when he was spotted smoking what appeared to be a joint while sitting in a car in Manhattan.