The 27-year-old singer, who split from husband Rusell Brand last December, said her next album will be much different from the cheerful music she is known for.
"It will be a much darker album than the previous one. It was inevitable, after what I went through. If I had a time machine and could go back in time, I would. But I can't, so you'll discover another part of me," said Perry. But Brand won't be her only muse.
Perry is also looking to Madonna as her inspiration for the follow-up to 2010's record-breaking 'Teenage Dream'. "I think Madonna, especially in the beginning of her career when she was laying the foundation, was evolving every single time and giving a new visual and a new idea to the public.
"She kept everybody interested because you never knew what she was going to do next, but whatever she delivered was a solid product. I just hope to be the same. I hope to continually make people interested and hopefully in 10 years look back and have written songs that have become timeless," she said.
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