She originally auditioned for the role of Miley Stewart's best friend on "Hannah Montana

She said she came out to her mother at age 14

She founded a nonprofit called Happy Hippie Foundation.

Dolly Parton is her godmother.

Elvis Presley is Cyrus' biggest music inspiration.

She has a heart condition called tachycardia.

She had an uncredited cameo in "Guardians of the Galaxy Vol. 2."