The two rappers had circled one another for more than a decade, but their attacks turned relentless and very personal in a slew of tracks released over the weekend.
Ed Piskor, 41, was known for his detailed “Hip Hop Family Tree” and “X-Men: Grand Design.” A Pittsburgh gallery canceled an exhibition of his work after the initial allegation.
J. Cole also vowed to update the track, “7 Minute Drill,” or remove it from streaming services after it was featured on his new album, “Might Delete Later.”