I got recomended them on here not to long ago and ever since I've had Crystalised in my head its such an ace track! I hope they have more good tracks to come.

http://www.myspace.com/thexx

They have just done a mix for FACT as well...

Tracklisting:

Ytinifni - Jamie xx
Hot Like Fire (Jamie xx edit) - The xx
Sub Island - Skream
Wolf Cub - Fourtet/Burial
Test Me For A Reason - Zomby
Booo! - Sticky feat. Ms Dynamite
Blood Red Moon (Jamie xx Bootleg) - The xx
Raphael - CocoRosie
Young Rabbits - The Crusaders
Stardance - John Forde
Blindfolded - Theophilus London
Skips A Beat - Mayana
Heart Skipped A Beat - The xx
Basic Space (Jamie xx Space Bass Mix) - The xx

http://www.factmagazine.co.uk/index.php?option=com_content&task=view&id=3160&Itemid=98