Katy Perry Surprises London Fans At Movie Screening

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June 8, 2012 | 4:01am EST

Pop star Katy Perry stunned fans by making a surprise appearance at a sneak preview of her new movie in London on Thursday.
The I Kissed A Girl singer showed up unannounced to introduce Katy Perry: Part Of Me to a theater full of excited youngsters in the capital.
She told the crowd, “Hey, hello! Is it alright that I’m here? We’re going to watch my movie!” before popping on a pair of 3D glasses and taking a seat in the middle of the cinema.
Perry also posed for pictures with fans and handed out popcorn to the audience.
The singer posted a picture of herself sat in the cinema on her Twitter.com page and wrote, “Had tons o’ fun in London today at a surprise screening… Wish I could sit w/ (with) all of u (sic) when u see (the film).”
The documentary, which opens in July, features concert highlights and behind-the-scenes footage, as well as clips from her personal life and childhood.