Warner Bros. Tusk is the twelfth studio album by British-American rock band Fleetwood Mac, released as a double album on 12 October 1979. ... Compared to 1977's Rumours, which sold 10 million copies by February 1978, Tusk was regarded as a commercial failure by the label, selling four million copies.

How many albums did Tusk sell?

Christine McVie bristled during a 1982 interview with Sounds, pointing out that "Tusk sold 9 million copies – so it can't be too shabby, can it? But a lot of people gave us flak about that album. It's very different, very different, very Lindsey Buckingham. I'll have to say that.

Did Fleetwood Mac sleep with each other?

Stevie Nicks had an affair with Mick Fleetwood in 1977

Though the “Edge of Seventeen” singer still calls Fleetwood one of her “great great loves,” per MamaMia, she admits their reckless affair likely wouldn't have happened had they not been under the influence of drugs and alcohol.