Justin Bieber — I Got Love (and Cash) for the Philippines

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Justin Bieber“s street art obsession is finally being used for good … “cause the singer tagged a piece last night to raise money for the Philippines.

J.B. got his tag on alongside a friend named Milk Tyson Saturday night in Los Angeles … and we”re told the plan is to auction off the spray cans, and a signed pic of the wall … and donate the money to a soon-to-be named Philippines typhoon relief group.

One source tells us Justin wants to “get involved” in efforts to restore the Philippines … and this is his first step.