What is the House theme song called?

Where is the theme music from?
According to a note posted on the Internet Movie Database< House MD Forum, by rachel_lb "The theme song [for the U.S. broadcasts] is 'Teardrop' by the group Massive Attack ." and jupiter0225 posted that it was on the album Mezzanine. And the closed captions also identify this as Teardrop from Massive Attack. But overseas the theme music is different. We can only assume that the contract for the use of this music was restricted to the U.S. So overseas there is theme music used for the first season and different theme music used for the second and that was done by the music supervisors and isn't available anywhere.

* "The theme music on episodes shown overseas is different. Someone wrote Fox asking about it and Fox wrote back (this was published at LiveJournal and republished by "Elen" on the Television Without Pity's House Forum
"We can confirm that the theme tune for Series 2 episodes is different to the one use in Series 1. It has been especially composed for the series by the same people that write the incidental music used throughout. To our knowledge it is not available commercially."
* In the"House" section of Wikipedia:
"The opening theme is 'Teardrop' by Massive Attack... "Due to rights and licensing issues this music is not used for the show in South Africa, the United Kingdom, Germany, Switzerland (German version), Belgium, Sweden, Denmark, Australia, Portugal, Spain, Italy, Ireland, Israel, Japan, New Zealand, the Netherlands, Hungary, Latin America, Greece, Hong Kong, and Turkey. In those countries, a piece of music named 'House,' composed by Scott Donaldson and Richard Nolan, is used, which was written specifically for the show. With the second season, this was replaced with a similar, but modified, track. The parodic British television show Dead Ringers, which sometimes spoofs House, uses "Teardrop" for the spoof's opening theme. 'Teardrop' is also used in the Season 2 Region 2 release, replacing the 'House' theme at the beginning of the episode."

http://www.housemd-guide.com/faq.php#theme

it's teardrop by massive attack