August 29, 2013 9:44 am Katy Perry's Inspiration for New Song “Roar” Katy Perry describes her inspiration behind her new song “Roar.” Also, she gives advice to aspiring artists. US & World Videos 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 1:18 14-year-old accidentally kills his brother with a gun found in an alley