Snoop Dogg and Eminem’s relationship goes way back to the 1990s when Dr. Dre signed the then-burgeoning rap star to Aftermath Entertainment. Aside from collaborating on The Marshall Mathers LP single “Bitch Please II” in 2000, they also toured together as part of the Up In Smoke Tour that same year along with Dr. Dre, Ice Cube and Xzibit. Twenty …