Released in February 1977, Rumours is the eleventh studio album by British-American rock band Fleetwood Mac. The Rumours studio sessions were marked by hedonism and strife among band members that shaped the album’s lyrics. Rumours became the band’s first number-one album on the UK Albums Chart and topped the US Billboard 200. Rumours was an instant commercial success, selling over 10 million copies worldwide within just a month of its release. It garnered widespread acclaim from critics, with praise centred on its production quality and harmonies, which frequently relied on the interplay among three vocalists and has inspired the work of musical acts in different genres. It won Album of the Year at the 1977 Grammy Awards. It has sold over 40 million copies worldwide, making it one of the best-selling albums of all time.