It has been a while since the world has heard another great album released from Dr. Dre, a world-renowned hip-hop producer. It has been 16 years to be exact since the legendary producer came out with an album and this time, he made it sure that only the best artists in the industry are a part of it.

According to Cleveland.com, here are some of the artists that you should know who made it in his album's roster and their respective tracks that we said to be controversial. Music critics said that there are no bad tracks from this release as the producer only made sure he releases high quality music. Dre's newcomer in the game Kendrick Lamar has three songs in this album and it's a must that music fans check out his track Darkside/Gone.

Eminem is impossible to not be in this project since he is one of Dr. Dre's most famous prodigies. In fact, his track on this album is one of the most controversial songs that were released. The track was so good according to critics that it could even stand alone. But knowing the kind of eccentric artist that Eminem is, he tends it to be even more controversial that he wrote some disturbing lyrics on his track related to rape. The song is called Medicine Man and the bars on this track are so hard to be unnoticed. 

According to Pitchfork, it took years of creating and even cancelling albums and tracks before Dr. Dre finally released "Compton." The movie Straight Outta Compton, which tells the story of the famous group N.W.A. was his inspiration behind this project. The album was not said to be the official soundtrack of the biopic though, but it was co-produced by Dr. Dre as well. Watch out for the movie of August 14, 2015.