The 17-year-old teenage star said her mother took away the "Sorry" hitmaker's garments from backstage at an awards show, where he was performing with her sister, Miley, reported Femalefirst.
She recalled "I said, 'Mom, I just want his clothes'. So she ran in there and stole them."
While Noah's mother, Tish Cyrus, was supportive of her bid to steal the Canadian pop star's stuff, she was not so keen for the "Make Me" singer to rush into launching her career.
"I remember my mom asking me to wait until I was 18 to put my music out. I got close, but I was ready to start my life.