Lyle Preslar (Minor Threat, Caroline Records) and Jim Shearer (MTV/VH1) discuss:The pop-cultural and musical legacy of Muhammad Ali; Kanye West's surprise concert that never happened; Metallica's rendition of the "Star Spangled Banner"; Drake's chart dominance; the return of The Descendents; Axl Rose trying to corral the internet; and what it was like for our resident punk rock legend to attend a Selena Gomez concert.