Examples: Motley Crue's Dr. Feelgood shaped Rock and Metal into Hair Metal and created a lot of clones like Poison, etc. Nirvana's Nevermind and Green Day's Dookie took the emphasis away from the crappy Hair Metal saturation and combined Garage, Punk and Rock into one. Nine Inch Nails' Downward Spiral, Marilyn Manson's Antichrist Superstar and Tool's Aenima took the emphasis away from the grappy Alternative and Grunge saturation and introduced Rock and Metal to Industrial, Goth and performance art. The Spice Girls... did godknowswhat, and my god I don't know what the hell was going on there. Prodigy's Fat of the Land and Moby's Play introduced Rock and Dance to Techno. Backstreet Boys brought back "boy bands." (Yeah, thanks for that.) Britney and Christina did something to the Pop industry, way back when. Jessica came later on, and low and behold all of them are still here, which is surprising. The Strokes' Is This It tapped into the Retro, Low-Fi Rock scene and then asked their rich dads to hook them up with a place on Billboard. The White Stripes' White Blood Cells got their chance too, which was well deserved. Your turn!