George Clooney hosts star-studded Halloween party on wheels with Justin Bieber and more

Longtime pals and tequila afficianados George and Rande cheers’d to their festive venture ahead of departure. The Casamigos Halloween truck put safety first by scheduling appointments over multiple days and undergoing a deep cleaning and air purification between stops.

Gabrielle Union-Wade had double the treats on the truck as she celebrated the holiday and her 48th birthday.

The truck rolled up to the star’s home, where she hosted a socially-distant outdoor screening of Boomerang and Amityville Horror - tacos and tequila were the main dish, of course! Before the screening, all guests were treated to spooky blood orange margaritas, candy and popcorn.

January Jones went mad over the truck as it made a house call. The Mad Men star filled her Casamigos tote with treats for her at-home celebration.

Maria Menounos and husband Kevin Undergaro donned Casamigos branded Halloween onesies for their night in.

Molly Sims also loved the one-of-a-kind Casamigos branded onesies, picking one up during her scheduled time slot. The model even rocked a costume, going as a mouse.

Sarah Michelle Gellar was a pro with her custom mask, sipping on specialty Casamigos boo(s)-ze.

Performer Zoey Deutch was the last stop of the evening. Her and a pal donned festive black and orange style.

The Casamigos 2020 Halloween celebrations wrapped up with a visit to Justin and Hailey Bieber’s house. Hailey dressed as Nurse Dolly from Netflix’s Ratched, while her famous love opted to go as a hipster cowboy.