TMZSports.com

DeMar DeRozan, Russ Westbrook Dance On Stage With Kendrick Lamar, LeBron In Crowd

Kendrick Lamar's "Pop Out" concert in L.A. looked something like NBA All-Star Weekend ... with LeBron James, Russell Westbrook, DeMar DeRozan and James Harden all attending the massive event -- and two of the superstar ballers even hopped onstage!!

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