The actress' rocker ex-fiance, Matthew Bellamy, also joined in on the fun.
These ladies brought their A-game -- and a ton of sparkles -- to the red carpet.
Catherine Zeta-Jones and Naomi Watts also slayed the red carpet in gorgeous gowns.
The 37-year-old actress is a serious acrobat!
The actor took to Instagram recently to ridicule a report that Pitt was moving in with his sister.
Gwen's boyfriend, Blake Shelton, also performed at Luke Bryan's event.
The country star shared the exciting news on Twitter.
'City of Stars,' indeed!
Kate's bro let the jokes fly on Instagram.
The model shared the nearly-NSFW look on Instagram.
Freddie's mom, Briana Jungwirth, shared pictures and videos from the special day.
Their moves were pretty impressive!
The 'Late Late Show' host and actress got seriously schooled by some talented toddlers!
The star gushed over Amy Schumer on the Golden Globes red carpet, with longtime partner Kurt Russell by her side.