This album currently is in the top five of 'best selling albums' of all-time. Since it's debut in 1977, it has sold over 40 million copies.

Below are some hints to help you guess.

**It used to be the biggest selling album of all-time (selling 20 million copies) until Michael Jackson's 'Thriller' came along six years later.

**Jessica Lange, Kathleen Quinlan and Carrie Fisher all auditioned for the lead female role. Amy Irving was one of the finalists for that role, which ultimately went to Karen Lynn Gorney.

**This two disc album features the music of: Kool & The Gang, KC & The Sunshine Band, The Trammps and the Bee Gees.

**Originally the best selling soundtrack of all time, until Whitney Houston's 'The Bodyguard' was released in 1992.

**This movie was so successful that Producer Robert Stigwood recreated the same concept with his next movie, Grease.

**Six years later there would be a sequel to the movie, directed by Sylvester Stallone. The movie earned enough money to make it one of the ten most successful films of 1983, although critic's destroyed it.

Click HERE to see what album I'm talking about.


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