T in the Park has added Groove Armada, Shed Seven, We Are Scientists, Rodrigo Y Gabriela, The Black Keys, Sven Vath, Kate Nash and Chipmunk to its 2010 event. See the full line up here.
Muse, Eminem and Kasbian are scheduled to headline separate nights.
T in the Park is one of the largest festivals in the U.K., making itself the 2 day home for up to 60,000 people in the Scottish countryside. Moors. Fog. And lots of intoxicated festivalgoers. There are over 120 artists performing across 8 stages over 2 days in Balado, Kinross. The festival has become known as the Scottish counterpart to Ireland's Oxegen Festival.
Check out the Spacelab Festival Guide for more information on T in the Park.