Billie Eilish arrives to NBC studios in NYC for rehearsal ahead of her Saturday Night Live gig

Finneas Didn’t Play His Solo Album ‘Optimist’ For Billie Eilish – and Four Other Things We Learned In His Podcast Interview

Exclusive: Billie Eilish and Finneas Already Writing Music For Her Third Album

Cara Delevingne cuts a casual figure as she strolls with a pal in NYC