Mariano Vivanco, like many photographers on this list, got his start at Dazed & Confused. While working for the magazine in 2001, he met and began collaborating with stylist Nicola Formichetti (now Lady Gaga's fashion director) on numerous iconic covers. Since, he's published seven books for Dolce & Gabbana and photographed extensively for Vogue Hommes Nippon, Numéro, Numéro Homme, i-D, Dazed & Confused, Hercules, Details, GQ Italy, GQ Spain, Wonderland, Allure, Elle, and Vogue. He has three portraits in the National Portrait Gallery, of Lily Cole, Nicola Formichetti, and Rafael Bonachella. Having shot a ton of celebrities at the early stages of their careers, he published the book Ninety Five Chapel Market in 2008, which included Seinna Miller, David Gandy, Lily Cole, and others. He has recently done extensive collaborations with Formichetti, Mugler, and Lady Gaga, which includes photographing her for i-D Magazine's "Exhibitionist Issue," wearing Mugler.