15 bands in the lineup, 2 were active during the 80's, 6 more were active during the 90's. You have a mighty broad definition of almost 100%. Journey couldn't have done squat with this. I listened to very little of Journey, it was boring, but of the bands that are on the lineup from the 80's and 90's I know for sure they never played Ludacris, Civil Twilight or Van Hunt. Pretty sure they didn't have Pearl Jam, Foo Fighters, and Garbage in heavy rotation. That pretty much leaves 1 song each from Adam Ant and Joan Jett.