Tupac didn’t have as big a feud with Jay Z as he did with The Notorious B.I.G., but the two were definitely at odds at one point.
2Pac's beef with JAY-Z started after 2Pac heard the rumor that JAY-Z was dissing the West Coast. After 2Pac recorded his verses for "Hit 'Em Up" he added a message at the end of the song.
He was dissing JAY-Z before he took it off the record.
2Pac wanted to hear JAY-Z' album "Reasonable Doubt" before he decided to diss him.