Katy Perry has a smelly film crew following her around shooting her latest movie. The 27-year-old beauty is currently being filmed by an English production team for her part-biopic, part-concert movie - which will be released later this summer - but she doesn't understand why they don't wash their hair on a regular basis, but she believes it is down to their nationality.

"I've got friends who are English who are filming me for my movie. Anytime I go out wearing a sweater that looks any type of grandma-ish they steal it from me. There's one whose name is Ed. He's real skinny, he showers every day but washes his hair about every three weeks. That's what the English boys do, all those hip English boys they just don't wash their hair because they think they won't get that cool look. But I love the people of England, they're so lovely and courteous. The real people of England care, they mean well. Maybe they talk crap behind your back, but they're so sweet to your face."

Katy was recently inspired to dye her hair blue after seeing her one of her favorite actress' Kate Winslet star as a blue-haired character in 2004 romantic drama movie Eternal Sunshine of the Spotless Mind:

"I always wanted to go blue because I love the movie Eternal Sunshine of the Spotless Mind. And Kate Winslet, who I adore and think is one of the greatest, most awesome actresses in the whole world has blue hair in that film. So I saw it six or eight months ago and I thought, 'That's where I'm going next.'"