Turn on the radio or take the time to flip through the stacks of used CDs at your local Goodwill or thrift store. Google ?rock ?n? roll music, ? even. Better yet, visit any public place that plays popular music from the last 50 years or so as the soundtrack to your Saturday afternoon grocery-shopping, clothes-buying or indie record store-scouting experience and you?ll find that no matter where you go, there's an ever-enduring presence that since the late 1960s has been a mainstay in the world of pop culture and popular music: a former blues band turned rock ?n? roll atom bomb called Fleetwood Mac. Though much of the band's popularity stems from their work in the late seventies and eighties, from an era when gas was 50 cents a gallon and singers were their own songwriters, there's a reason why the band has been able to maintain their status as rock ?n? roll royalty even more than 50 years after making their debut as a London-based blues group. His name is Lindsey Buckingham.