After an 8 year hiatus Leftfield are back, smashing live gigs across the pond, and must play Coachella 2011. A massively influential dance act known for their blistering live performances, they simply bring the ruckus with a pioneering organic blend of house, dub and reggae. And their 1995 debut album Leftism is considered among the best electronic works out there. Some recent audio/visual confirmation of these claims for your enjoyment:

Likely relevant to your interests: Leftfield live at Homelands 2000

Thank you for your time and ongoing support. This lot will shake the Sahara and everyone in it to their core.