Kasabian, Vampire Weekend, Kings of Convenience, Gorillaz, Them Crooked Vultures, Patti Smith and The Prodigy are among the new acts added to the lineup for the Roskilde Festival in Denmark in 2010. Check out the full lineup.

Perhaps the coolest of all festivals on the planet (and one of the oldest), Roskilde Festival has the credibility, history, and coolness that literally no other festival in the world has.

Roskilde was started by two people in their teens back in 1971. That alone makes an interesting start. But it has existed all of these years while being a non-profit supporting ideals like culture and humanity.

The Roskilde Festival happens July 1st - 4th, in Roskilde, Denmark.

Check out the Spacelab Festival Guide for more information on the Rosklide Festival.