Katy Perry was swamped by fans while visiting the Eiffel Tower in Paris today. She wore a demure black and beige dress while sightseeing.

The pop star is busy promoting her new album "Teenage Dream."

After lunching at the Jules Verne restaurant in the famous monument she headed over to NRJ radio for an interview.

Her fiance, Russell Brand, is busy working on his own projects and was unable to accompany her on her European adventure.

After her stay in Paris, Katy boarded the Eurostar train and headed off to London. She looked a bit tired when she arrived, but was in high spirits and greeted fans at London's St. Pancras station.

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