*The Dark Side of the Moon was a commercial and critical success. It topped the Billboard Top LPs & Tapes chart for a week and remained in the chart for 741 weeks from 1973 to 1988. Following a change in methodology in 2009, the album re-entered the chart and has since appeared for over 900 weeks. With an estimated 45 million copies sold, it is Pink Floyd’s most successful album and one of the best-selling worldwide. It has been remastered and re-released several times, and covered in its entirety by several acts. It produced two singles, “Money” and “Us and Them“. It is often ranked as one of the greatest albums of all time.
*source Wikipedia – Dark Side Of The Moon