"Xanadu", performed by the Electric Light Orchestra (ELO) and Olivia Newton-John, is the title song from the 1980 film of the same name.
https://en.wikipedia.org/wiki/Xanadu_(Olivia_Newton-John_and_Electric_Light_Orchestra_song)
https://en.wikipedia.org/wiki/Xanadu_(soundtrack)
https://en.wikipedia.org/wiki/Electric_Light_Orchestra
https://en.wikipedia.org/wiki/Olivia_Newton-John
https://en.wikipedia.org/wiki/Xanadu_(Olivia_Newton-John_and_Electric_Light_Orchestra_song)
https://en.wikipedia.org/wiki/Xanadu_(soundtrack)
https://en.wikipedia.org/wiki/Electric_Light_Orchestra
https://en.wikipedia.org/wiki/Olivia_Newton-John
Text to this post, obtained from this song's Wikipedia page, has been slightly modified and made available here under the Creative Commons Attribution-ShareAlike 3.0 Unported License. (CC BY-SA 3.0)
https://creativecommons.org/licenses/by-sa/3.0/