July 2009: Artest signs with Lakers, choses the number 37, which he said was in honor of Michael Jackson's Thriller album, which spent 37 weeks at the No. 1 spot on the charts. (He switched back to No. 15 for the 2010-11 season)
December 2010: Artest raffles off his Los Angeles Lakers championship ring to boost mental health awareness.
April 26, 2011: Wins the NBA's J. Walter Kennedy Citizenship Award, given to someone who shows “outstanding service and dedication to the community.”
Sept. 16, 2011: Changes name to Metta World Peace. The word “metta” refers to the Buddhist virtue of kindness.
April 22, 2012: Elbows the Thunder's James Harden in the head while celebrating a dunk, receiving a flagrant foul 2 and getting ejected.
Sources: ESPN.com and The Associated Press
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