Ariana Grande and Cynthia Erivo’s "Wicked: For Good" press tour is taking over the internet—and, of course, it’s the beauty moments that have us obsessed. From Ariana’s fresh soft-brunette transformation to Cynthia’s XXL nail glam, the duo is serving nonstop inspiration. For anyone looking to channel Glinda’s glowing, buttery-blonde magic or recreate Ariana’s new rich brunette shade, we tapped her go-to colorist, Francesco De Chiara (@frankhaircolour), to share the exact formulas behind both looks. (Spoiler: Frank used shades you probably already have at your backbar.)