The 'Rude Boy' singer was rushed to the accident and emergency department of the Hirslanden private clinic in Switzerland on Monday night (19.04.10) after hurting herself during her sell-out concert at the Hallenstadion venue, in Zurich.

The 22-year-old star's publicist has now revealed Rihanna only "went to have it looked at to be sure it was nothing serious' and insists everything is now 'OK, and the tour is going great'.

Rihanna - who was discharged from the hospital two-and-a-half hours after being admitted – was able to continue on the European leg of her 'Last Girl on Earth' tour and is now heading to Germany for a show in Frankfurt on Friday (23.04.10) before playing in Oberhausen on Sunday (25.04.10).

She then travels to Switzerland, France, back to Germany and Luxemburg before flying over to the UK and Ireland for a number of dates.

Rihanna's tour is her most ambitious yet and features a number of costume changes and rigorous dance routines.

She said: "We've never done a tour to this capacity. The production is unbelievable and so are the costumes, we just took it to a whole new level. We just keep growing."

When asked about the concept behind her show, she recently said: 'It's my world, and I'm going to live it the way I want to. That's how I think about everything, that way I'm focused on me, and my work.

"I like to think about myself as the last girl on earth because sometimes people make decisions based on the outlook of others and, you know, to me, my life is my life."