Justin Bieber has picked up a new art form: graffiti.


The Canadian pop star posted several photos to Instagram of himself engaged in his "new hobby," spraying city walls with crude cartoons and messages. On one wall, he's seen writing, "R.I.P. Pac," though it's unclear if he's honoring Tupac Shakur or his recently deceased hamster, which he named after the late rapper — or both.


I swear. Between this, spitting on his fans, peeing in a restaurant mop bucket and having cops finding pot on his tour bus, this kid would be public enemy No. 1 if it were 1993.