Fleetwood Mac is one of those bands that loves to experiment with new sounds. Sometimes it works for them – such as the stylistic change they experienced with the addition of the two Americans in 1974 [guitarist Lindsey Buckingham and his then-girlfriend, Stevie Nicks] to a then-all British blues band. Other times the band experiments a little too much, such as they did with the addition of Bekka Bramlett in the 90′s due to the absence of singer Stevie Nicks.