Rihanna rushed to hospital

Katy Perry at The Nickelodeon's 23rd Annual Kids' Choice Awards in LAAfter a concert in Switzerland on Monday, Rihanna was taken to hospital in a blacked-out Mercedes.

She reportedly left the Zurich venue after midnight and was driven to a private clinic due to an unknown condition. She exited the hospital at 2.55am.

Though no official statement has been released, she is apparently well enough to head to France for her next tour date.