Coldplay - Rihanna Joins Coldplay At Paris Concert

The chart stars teamed up for single Princess of China earlier this year (12), and they came together once again at the Stade De France venue on Sunday.

A post on the band's Twitter.com page reads, "The band were just joined onstage in Paris for Princess of China by Rihanna!"

A photograph showing frontman Chris Martin playing the piano as the Bajan beauty took to the stage was published on Coldplay's Tumblr.com blog, alongside the caption, "Umbrella with Rihanna!!"

The 24-year-old pop star later took to her own page on the microblogging site to declare, "Coldplay f**kin rules!!!!"

Rihanna's fleeting trip to the French capital from London was chaotic - she was mobbed by fans after she arrived on a Eurostar train and she told followers, "The French are f**kin insane!!! I just had to fight my way out of a damn train station!!! Y'all are outta control with this s**t in Paris!!!"