Here's a chance to put down your favourite tango music, the name of the artist/cmposer/singer, and any pro couple that may have used it in their demonstration.
Please dont write long replies to make it easier for everyone who wants to read the list.

For example, here's the first entry:

Yo-Yo Ma Libertango Tango Suite - Astor Piazola
Used By Massimo Giorgianni and Allesia Manfredini in part of their tango

"Queen of the Night" No idea who it's by, and
I've only seen it on some English CD called
"Starlight", but it wasn't the Starlight orchestra. I can't find it anywhere.

"Santa Maria (del buen Ayre)" by Gotan Project (great electronica/tango fusion, very hot!)
Also, the entire World of Tango album, by Orquesta Tipica Buenos Aires is great (I have vol. 3, which contains the well-known La Cumparsita, Derecho Viego, and a couple viennese waltzes, oddly enough.
Hernando's Hideaway; Santa Monica; Jealousy; El Choclo (the versions I have are the Ballroom Dance Orchestra's Tango CD, and they're pretty good).