According to the complaint, DJ Kool Herc turned down a $10,000 offer before the series aired. The pioneers of rock and hip-hop are having a bit of a moment in courtrooms across the nation. Led Zeppelin is set to stand trial next week over “Stairway to Heaven” while Flo & Eddie of the Turtles are leading putative class actions over the broadcasting of their music on platforms like SiriusXM and …