The annual Coachella Music Festival got underway Friday and Hollywood stars flocked to the event like ducks to water. Actually, some of them even got into the water to cool themselves down from the desert heat.

PHOTOS:  Hollywood Hits The Desert For Coachella Music Festival

We spotted Tara Reid running through sprinklers, and Ashley Greene looking cool in cut-off jeans and a bikini top.

Lindsay Lohan, Usher, Robert Downey Jr., Vanessa Hudgens and Alessandra Ambrosio were all there.

Even a True Blood vamp tempted sunlight to be part of the scene. Alexander Skarsgard was there, hand-in-hard with girlfriend Kate Bosworth.

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The Festival continues through Sunday in Indio, CA.

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