We were beginning to think that the Riri/K-Pez love-in was so 2011. And then we saw these photos...
Katy and Rihanna might not have had much luck with the opposite sex in recent months - but these photos prove that their womance is very much alive and well.
Snapped at Coachella yesterday, Rihanna interrupted her performance to show some love for Katy. Later Rihanna tweeted it was "one of my best nights ever". Sweet.
Click on the gallery below to see more celebrity best friends: