Antonina Armato is the hitmaker behind some of pop’s most iconic records, from a song later covered by Mariah Carey to shaping the early careers of Miley Cyrus and Selena Gomez. In this candid conversation, Antonina shares how she went from an emotional teen with a Walkman to co-founding Rock Mafia, one of the most influential songwriting and production collectives of the last two decades.