Justin Bieber is not only allegedly addicted to "sizzurp" -- cough syrup mixed with codeine, promethazine, Jolly Ranchers and soda -- but his "lean" of choice is a high-quality brand known as Actavis. That is, of course, if you believe TMZ.

The site's sources claim that the 19-year-old singer drinks 8 to 12 ounces of the high-end mixture per day, which is a serious amount. And Actavis isn't cheap, either -- it reportedly costs $800 a pint.

Bieber's friends are supposedly encouraging the pop star to go to rehab, but he allegedly refuses.

These drug allegations come after a rough few weeks for The Biebs. After egging a neighbor's house, Bieber's home was raided for evidence, where his pal Lil Za was busted for possession of molly, a form of Ecstacy. Bieber's cell phone was also seized during the raid, and he is said to be worried about the cops finding drug references on the device.

Beliebers, what do you think of the claims that Justin Bieber is addicted to sizzurp?

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