Years after members of the Gap Band were added as co-writers of the hit song, their heirs say they aren't getting paid their cut.
The move comes 15 years after Meek was originally convicted on drug and weapons charges.
The concert giant lost an early bid to dismiss the case, which claims "lackadaisical" security led to the rapper's death.
The "As It Was" star is battling counterfeit Harry merchandise by borrowing a legal maneuver used by big retail brands like Nike and Ray-Ban.
Rapper also called for release of his co-defendant Young Thug.
All three men could face life sentences if convicted of first-degree murder.
Also this week: UMG faces a class action over its stake in Spotify, Cage The Elephant's lead singer is arrested for gun possession and much more.
The singer was detained on $15,000 bond.
"One might expect that, as a member of Congress, you would have a passing familiarity with the laws of our country," Dre's lawyers wrote.
The case is the latest legal scuffle for the TikTok-like social media service, which is also embroiled in a similar fight with Sony.
