GRAMMY-winning superstar Billie Eilish, who can now add “author” to her list of accolades, returns to A Late Show to tell Stephen about her journey to become a blonde, and what it was like watching the internet react to her revealing “Vogue” cover shoot. Her book, “Billie Eilish” is out now and her upcoming album, “Happier Than Ever,” drops on July 30th. Stick around to watch Billie and her brother FINNEAS perform her new single, “Your Power.” | The Late Show with Stephen Colbert