It’s her 5th music video over 1 billion views Roar - 3.1 Billion   Dark Horse - 2.8 Billion   Firework - 1.2 Billion Last Friday Night - 1.2 Billion  Bon Appetit - 1 Billion She’s far the most watched female artist on Youtube. Hot N’ Cold has 990 million views, she will be the first female artist ever with 6 songs over 1 billion