For my money, the best music podcast currently going is 60 Songs That Explain The ’90s, the memory-fog extravaganza from my old friend and former boss Rob Harvilla. The show’s format is pretty simple. Rob goes long about a particular song, illustrating both that song’s cultural context and his own personal history with it, which usually involves embarrassing teenage stuff. Then, he brings on a guest to talk about the song’s impact. Usually, that guest is a minor celebrity or a critic — someone like me. (I was on the “Ice Ice Baby” episode.) But when Rob’s show came back from a short hiatus this week — he’s now gone way beyond 60 songs — he finally got to “Smells Like Teen Spirit,” and his guest was one Courtney Love.