Fans, bands and a whole lotta celebs made the trek to Indio, CA for the first weekend of Coachella -- where they braved the heat with skimpy clothes and rocked out at some killer pool parties.

As bands like Blur, Jurassic 5, Modest Mouse and Passion Pit playing Day 1, celebs like Leonardo DiCaprio, Kellan Lutz, Alessandra Ambrosio, Jared Leto, Kate Bosworth, Paris Hilton, Hilary Duff, Jesse Metcalfe and Alec Baldwin's daughter Ireland Baldwin were all spotted walking around the polo grounds on Friday.

Those who weren't seen enjoying any live music, were seen attending some of the weekend's best parties.

Katy Perry seen poolside at Harper's Bazaar's bash at the Parker Palm Springs while celebs like Bono, Joe Jonas, John Legend, Teresa Palmer and "Mad Men's" Jessica Pare were all spotted at a DIESEL + EDUN Studio Africa event at Tally Horse Ranch.

Check out all the photos above to see more candid Coachella pics from the fairgrounds and all the nearby parties.

Hot Videos