Dave Grohl has reflected on Kurt Cobain‘s seismic musical impact, as well as discussing the emotional toll of Nirvana‘s untimely split.Speaking on Apple Music’s Medicine At Midnight Radio, Grohl also reflected on how the band were initially surprised by their rise to global fame in the early 1990s.“We were still in our van and we were just watching this happen in front of us,” he said.“The shows were getting bigger,” he explains. “The crowds were getting bigger.