The rockers performing at the 2012 Coachella Valley Music & Arts Festival aren't the only celebs in the desert this weekend -- as a ton of stars came out to party and support their favorite bands!

With two days of the three day, two weekend event already over we've seen quite a few stars all over the place.

Yesterday, birthday girl Emma Watson used the festival to go public with her new boyfriend ... who she was seen kissing and cuddling with during a show.

And they weren't the only couple we've seen -- Josh Duhamel looked cute with wife Fergie, Paris Hilton showed her support (and her body!) for boyfriend DJ Afrojack at the A/X Neon Carnival (deejayed by Jesse Marco from "Project X") and Vanessa Hudgens got cozy with new boyfriend Austin Butler at the same Lacoste pool party her ex, Josh Hutcherson, attended.

Lea Michele and co-star/boyfriend Cory Monteith were also at the Lacoste bash, with Joshua Jackson and Diane Kruger.

Katy Perry showed off her new long purple locks at the Hennessy V.S. Presents DETAILS @ Midnight party after taking in the M83 concert.

Check out all the best sightings in the gallery above!

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