Today in Rock HistoryMay 3, 2013Eddie Van Halen appeared on Piers Morgan Live on CNN alongside LL Cool J to discuss their musical collaboration. The interview focused on LL Cool J’s 2013 album Authentic, which featured Van Halen playing guitar on the tracks “We’re the Greatest” and “Not Leaving You Tonight.” During the conversation, Van Halen discussed how unusual it was for him to contribute guitar work to a hip-hop record and talked about his enjoyment of collaborating outside the rock genre.