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!!
K. Dot set the world on fire during his Juneteenth unity celebration at the Kia Forum on Wednesday ... where he performed his iconic Drake disses for the first time, as well as all the classics from his discography.