Van Halen is what Rock n Roll is and ended as.  Since then there has been very, very few real rock n roll bands.   Now "rock", that's different.  "Rock", not "Metal".  Nirvana, STP and one of my modern era, but not modern favorites, is Saliva.  That every six seconds album is just awesome.   I find myself listening to BPM on xm and 80's country now.