EXCLUSIVE: Hailee Steinfeld on Jealousy Among Women in the Music Industry: 'It Exists In My Life'

The 'Pitch Perfect 3' star -- and member of Taylor Swift's squad -- opened up about her new girl power anthem, 'Most Girls,' and why now more than ever women need to band together. ET chatted with the singer at the Prive Revau Luxury Sunglasses in Los Ang