2013 marked a return to hip-hop for producer Rick Rubin. Rubin executive producing both Kanye West’s Yeezus LP and Eminem’s eighth studio album, The Marshall Mathers LP 2, was Rubin’s first time producing hip-hop again since Jay Z’s “99 Problems.” Rubin’s return to rap proved successful. The Detroit rapper’s LP hit No. 1 on the Billboard 200 and Hip-Hop charts, and became the second-biggest debut for an album in 2013, after it sold 792,000 its first week. Yeezus was the No. 1 album in more than 30 countries.

Rubin phoned into Shade 45 to speak with Peter …

50 Cent has been putting his music on the backburner, focusing more on his television and movies projects. So when he showed up this week on SZA’s remix for “Teen Spirit,” it was a nice surprise. Fif is full of surprises, though.

The former G-Unit rapper phoned into DJ Whoo Kid’s Shade 45 radio show and got philosophical on several recent current events. He gave his thoughts on Nelson Mandela’s passing, Paul Walker’s untimely death and Kanye West’s rants. 50 also talked about his beef with G-Unit and writing the hooks for their raps, and the rapper …