Jessie J made her first appearance in months at the festival after breaking her foot at the start of the summer, and she did it in style with a wild looking outfit inspired oleh cats.
As well as a leopard print catsuit, Jessie wore a hat featuring little pussycat ears while bernyanyi from her takhta at the gig.
"The Big Chill was HOT! Thank anda for going iinnnn even in the rain!!! " Jessie tweeted.
"Amazing tampil @kanyewest was a honour to open for you.
"Visuals, songs, performance wow! :) #thebigchill "