What Argentine tango inspired "El tango de Roxxane" in Moulin Rouge?

[Adam Flynn]

there is an actual tango that provides most of the musical background

[JenGen]

It was a late seventies song written by Sting, and performed by him and Police.
I've never heard anything about him re-purposing an existing tango.

I checked on wikipedia for confirmation and they say it was originally conceived as a bossa nova but changed to a tango rhythm.
http://en.wikipedia.org/wiki/Roxanne_%28song%29

[JenGen]

It was a late seventies song written by Sting, and performed by him and Police.
I've never heard anything about him re-purposing an existing tango.

I checked on wikipedia for confirmation and they say it was originally conceived as a bossa nova but changed to a tango rhythm.
http://en.wikipedia.org/wiki/Roxanne_%28song%29