Not so many tricks, but lots of treats here! The Casamigos Tequila Halloween party was a big blowout, Friday night, as usual. Hollywood's A-listers turned out in some of the best costumes we've ever seen -- to name a few: Jessica Alba as Lisa Kudrow's character in Romy and Michele's High School Reunion and hubby Cash Warren as Tom Cruise in Top Gun; hosts Rande Gerber and Cindy Crawford as sexy bikers; Paris Hilton as a sexy Viking and sis Nicky as a Pocahontas; EJ Johnson as Grace Jones; Gwen Stefani as a cowgirl; Josh Duhamel and Fergie as Karl Lagerfeld and his kitty cat Choupette; and Kyle Richards and husband Maurico Umansky as scary skeletons!

You've gotta scroll through the ENTIRE photo gallery to see many, many more amazing Halloween looks!

And click HERE to see a all the amazing video from Friday night!