January 27, 2018 - Christopher Polk/Getty Images North America more pics like this »
Lady Gaga
Who: Stefani Joanne Angelina Germanotta, aka Lady Gaga, is an American singer, songwriter, and actress. She is one of the best-selling music artists in history. 

Why she's fearless: Lady Gaga is no stranger to controversy. In fact, her career was pretty much founded on it — and her outrageous sartorial choices, of course. Who could forget her meat dress at the 2010 MTV Video Music Awards? Or the egg-like vessel she was carried into for the 2011 Grammys, for that matter? Certainly not her Little Monsters. 

Our musical picks: "Heavy Metal Lover," "Perfect Illusion," and "Paparazzi"