This is to raise money for the South East Asia Earthquake Appeal, it's £1 for both of them. One of the songs is called "Taboo" and appeared in the movie Natural Born Killers. The other is called "Mustt Mustt" by Nusrat Fateh Ali Khan and is a remix by Massive Attack (from just before they were famous).
If you have the time and are of a mind to do so, I'd really appreaciate it if you could have a look at this stuff.
Buy the songs here
Video with more info (requires Quicktime 6 or higher)