And just like that, once again it’s the most wonderful time of the year – Halloween! True to form, our fave celebs partied hard. But only the lucky ones scored an invite to the Casamigos Halloween bash on October 26 – an exclusive annual soiree hosted by the tequila label’s founders, George Clooney, 57, and 52-year-old Cindy Crawford’s husband Rande Gerber, 56. It’s the hot ticket every A-lister wants, with the party’s exclusive guest list, including Paris, 37, and Nicky Hilton, 35, and Harry Styles, 24, snapped partying at CATCH Las Vegas. Kendall Jenner, 22, got into character as a swinging ’60s vixon, and asked her Instagram followers, ‘Should we shag now or shag later baby?’ While Rita Ora, 27, was unrecognisable as an epic Post Malone. Here, we’ve got…