Is there a more crucial turning point for 1990s music and 90s rock than 1991? Artists released important albums weekly that would shape the decade (and even entire careers) such as Pearl Jam, U2, Soundgarden, Gun 'n Roses, Smashing Pumpkins, R.E.M., Red Hot Chili Peppers, Primal Scream, Blur, Metallica, and more. Then there were the underground bands that lurked on college radio and outside the Billboard charts like Slint, My Bloody Valentine, Slowdive, Mr. Bungle, Fugazi, Ride, Uncle Tupelo, Mudhoney, and Throwing Muses. It's the debut of Lollapalooza, the year trip-hop and desert / stoner rock would begin their ascension, the year Freddie Mercury released one last album with Queen before his passing, and the year "grunge" became a word everyone knew. It's a supersized episode with lots of guests and lots to cover.