Patched together by producer Rick Rubin and Jay-Z, "99 Problems" blended Jay-Z's paramount lyrics with Rick Rubin's ability to recognize a great guitar riff. Fans of Rubin's early days with Def Jam might be surprised to know that two decades later, the man behind LL Cool J's "I Need a Beat" was no longer a huge fan of hip-hop. "I hadn't really listened to Jay-Z's music before I worked on the track. I don't listen to very much hip-hop. But I really liked Jay. He has a great spirit."