Katy Perry Hits Water Park In New ‘Part Of Me’ Clip

'When we have a day off, she always likes me to explore something fun with her,' sister Angela Hudson says of Katy in upcoming film.

’s 3-D docu-concert “Part of Me” will showcase the darker side of the pop darling’s roller-coaster ride to fame, including her divorce from Russell Brand.

Still, there will be tons of fun thrown in the mix. In between scenes from her 2011 worldwide California Dreams trek, the July 5 film will also feature footage of the singer’s family, including a water-park outing with her sister.

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