After 40 years, 16 different members, and several break-ups, Fleetwood Mac endures as one of the world's most popular groups, selling more than 100 million albums. Our look at this amazing survival story begins with Fleetwood Mac finding its artistic niche in soft rock driven by haunting lyrics and female vocals. Mick Fleetwood and John McVie remained constant fixtures, while Christine McVie helped begin the group's transition to softer rock. With the arrival of Lindsay Buckingham and Stevie Nicks, Fleetwood Mac developed its signature sound. The group produced albums such as "Fleetwood Mac," "Rumours" and "Tusk," and a string of hit singles including "Rhiannon," "Go Your Own Way," "Over My Head," and "Don't Stop Thinking About Tomorrow."