Lady Gaga, Priyanka Chopra, Sydney Sweeney and Paris Hilton... These are just a few of the A-listers who turn to make-up artist and Haus Labs global artistry director Sarah Tanno when they want to look their best. Her on-screen and red-carpet looks are legendary, so we jumped at the chance to talk to her about everything from favourite products to the one step she’d never skip.