On Friday, Eminem released a surprise album, 'Kamikaze,' which included a track that took a not-so-subtle dig at Cleveland native Machine Gun Kelly. "But next time you don't gotta use Tech N9ne if you ...

Epic feuds and hip-hop are tied at the waist, coming from the streets where rap battles began. Some stars, like Eminem, owe their street-cred to their prowess on the rap battle front. In the 1990s we ...