Matt Baron / BEImages / Rex USA 1 / 10
Matt Baron / BEImages / Rex USA 1 / 10

There are moments of Miley Cyrus' past where she looks back and thinks, "What was I doing?"

That may not surprise some since the pop star has been considered by many to be crude and often act distasteful. She makes no apologies for her behavior, though, her regrets are more centered on fashion.

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"I had some shady wardrobe choices when I was about 16 to 18. I wore this hippie outfit to Justin Bieber's 'Never Say Never' premiere that I'm like, 'Girl, who told you -- it was not Woodstock, it was a premiere," she said.

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The pop star sat down with Marie Claire recently to play the magazine's version of 20 questions. In it, she talks about her love of her pet pig (she lets Miley paint her nails,) why she doesn't care for people's opinions and how much she loves conspiracy theories.

Miley is endlessly curious about "the concept of space and time," she said. "And I can read conspiracy theories all day."

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But, Miley also has a heart about certain injustices, namely homeless youth, which was evident when she attended the 2014 MTV Awards with a young homeless man.

"So many people are comfortable ignoring them," she said. "I feel like I have to be a voice or no one else will say anything."