Goodbye forever, Ron Artest -- TMZ has learned, the Lakers star is now legally "Metta World Peace."
It became official less than five minutes ago -- when an L.A. judge finally granted Metta's name change petition ... more than three months after Mr. World Peace decided to undergo an identity switch.
Good thing there's an NBA lockout -- because now there's plenty of time for the Lakers to crank out some new jerseys. So Metta.
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