George Pimentel/WireImage August 20, 2013 5:00 PM
6. Early in her career, Lady Gaga surprised the audience at Canada's 2009 MuchMusic Video Awards by having fire come out of her chest. While the rest of the outfit could've easily been worn by anyone from the Yeah Yeah Yeahs' Karen O to Beyoncé, Gaga's dangerously exploding bustier helped her quickly climb the ranks of fashion's most daring divas. And this was years before Katy's shot sparklers out of her own chest in the "Firework" video!