The xx is a young trio band from London, England. They have a very unique calm smooth spacey sound. There's really not other music a lot like this, The xx almost created a new sound. When they released their debut album "xx" in 2009, it received many awards and praises from critics, including the Barclaycard Mercury Award. They are currently working on their second album to be released in 2012.
Their most popular track is "Islands". Some of my favorites are the "Intro" track to the album, "Heart Skipped A Beat" and "Crystalised".
The xx on iTunes.