The great rockNot only have the Stones been the greatest rock band in the world for more than 30 years, but they have been a functioning rock ?n? roll unit for more than 40, the. Unquestionably one of rock?s greatest vocalists, Rod Stewart should have titled this album Great Rock Classics of My Time. Back in tha day, when you purchased a new record, you not only got a slab of great rock music but also a beautiful album cover often worthy of framing. Davey Havok (AFI), Jim Henke (VP of exhibitions and curatorial affairs, Rock and. Rock and roll is a genre of music that emerged as a defined musical style in the American South in the 1950s, and quickly spread to the rest of the country, and the.