This Friday, another season of festival fun kicks off in Indio, CA — bringing our favorite celebs out for their favorite bands. But when they're not taking in the music, celebs are usually cooling off at one of Coachella's afternoon lounges or parties. Last year, we spied style stars like Nicole Richie looking breezy and chic poolside, while Alexa Chung chatted with girlfriends at Mulberry's BBQ. Meanwhile, Diane Kruger stepped out with beau Joshua Jackson and joined Kelly Osbourne for the festivities at Lacoste. We've already got our bags packed for the weekend ahead, but before we head out, we're taking a look back at the trendsetting celebs from last year's coolest Coachella parties. Click through to see who we spotted out and about last year — and stay tuned for all of this year's action.