Watch Mariah Carey: Music Box Biographical Collection (1970) : Full Movie Online Free Featuring a compilation of archival footage and interviews, this hourlong documentary traces Mariah Carey's rise from a little-known background vocalist to an internationally acclaimed superstar who's sold more than 200 million albums. The video offers insight into the Grammy-winning pop diva's professional and personal lives, including Carey's failed marriage to music industry executive Tommy Mottola.