British electro-pop favorites La Roux drew a jam-packed crowd to their performance at the Coachella's Gobi tent, where Elly Jackson showed off her gravity-defying hairstyle — as well as her infectious synth lines. The band had the crowd bouncing to the monster smash "Bulletproof", but also whipped out a surprise cover of the Rolling Stones' "Under My Thumb". Which is exactly where La Roux's got us. See the beautifully androgynous Elly in our exclusive pics. (And if you need even more pics, check here).