It's one of the biggest events of the year in LA -- yep, the Malibu Chili Cook-Off, for all it's down-home feels and hot, dusty vibes, is actually one of the most celeb-attended spectacles aside from the Oscars and the Grammys!

Kourtney Kardashian kicked up her heels at the carnival on Saturday, along with pal Larsa Pippen and their kids. And guess who was there the night before ... Trying to run into your ex much, Younes???

Yeah, it's a tradition for the Kardashian clan to hit-up the festival so even Caitlyn Jenner went with girlfriend Sophia Hutchens. Think they were slightly over-dressed?!

It's a family affair for Malibu-natives Bella and Anwar Hadid, too. Check out their partying at the carnival, which practically turns into a nightclub after dark ...

And some unlikely attendees ... Orlando Bloom and his adorably pup, the Red Hot Chili Peppers' frontman Anthony Kiedis and even wannabe celeb Phoebe Price (who is she, you ask? who cares - she's not wearing pants ... roll tape!)

The fair runs through Labor Day weekend so there promises to be more action tonight and tomorrow ... stay tuned!