ABC News January 14, 2015

Miley Cyrus Reveals Which Outfit She Most Regrets

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Miley Cyrus attends an event at Wilshire May Company Building on Jan. 9, 2015 in Los Angeles, Calif.

Miley Cyrus has worn a number of eyebrow-raising ensembles.

However, there's one that stands out in her mind -- and not in a good way.

"I had some shady wardrobe choices when I was about 16 to 18," she told Marie Claire. "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.'"

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Cyrus, 21, added that she realizes that she's at an age where everything in her life is evolving.

"I have a lot of options of what I could do in my life," she said.

However, her love for one wardrobe staple, jeggings, remains eternal.

"They're the best invention!" she gushed. "Even though they have kind of ruined jeans."

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Miley Cyrus arrives at the premiere of "Justin Bieber: Never Say Never" on Feb. 8, 2011 in Los Angeles, Calif.