Jackie, 18, wore a green Armani dress and gold shoes and completed her look with a Jimmy Choo clutch.
Ariana, 19, was on the carpet early to co-host the red carpet with Ryan Seacrest.
“Having fun interviewing people with @Jojowright at the premier! Make sure to follow him everybody, he’s awesome,” Ari tweeted.
15+ pics inside of Jackie and Ariana…