Video And Pics After The Jump
Via The Sun
Bajan singer Rihanna was performing with DJ Calvin Harris at the Californian event when she decided to pull her famous friend on stage with her for a cuddle.
Wearing tiny studded denim shorts, a midriff-baring 'Peace' top, sunglasses and a 'Boy' cap, 24-year-old Ri-Ri was at her flesh-flashing, trashy best.
Later in the day she was seen with the words 'Thug Life' written across her tummy in pen while smoking a brown, naughty-looking cigarette.
The girls made the most of the festival buzz and spent time raving.
Rihanna even got on a male friend's shoulders to get a better view.
Give us a thug ... Rihanna rolling something up
The Twitter-obsessed pair have of course been keeping followers up-to-date with their festival shenanigans, especially Ri-Ri.
Not-so-shy Rihanna posted pictures of herself showing off her legs in her hotpants around a pool, and later giving everyone a cheeky glimpse of her backside.
But one pic appeared to be revealing too much as she posted one sat on her friend's shoulders with her thighs gripped around his shiny head.
Rihanna later wrote: "I had so much fun with your f*cking fanz tonight! Diz hoodrat $kabii @katyperry also crowd surft n ATE my A$$ during my show."
Meanwhile, Katy tweeted her love for dead rapper Tupac whose face appeared as a hologram during a set.
She wrote: "I think I might have cried when I saw Tupac. #coachella."