Olivia Rodrigo on Billie Eilish Being 'Protective' of Her and Their Friendship (Exclusive)

Olivia Rodrigo chats with ET’s Lauren Zima in Los Angeles at the premiere of ‘Olivia Rodrigo: Driving Home 2 U (A Sour Film).’ The singer reveals why a particular lyric in ‘Drivers License’ was changed, which can be heard in the documentary that chronicles the creation of her GRAMMY-nominated album. She also praises ‘incredible’ friend Billie Eilish for being ‘protective’ of her. Plus, Olivia shares advice for overcoming a heartbreak. ‘Olivia Rodrigo: Driving Home 2 U (A Sour Film)’ premieres March 25 on Disney+.