Congratulations are in order to Katy Perry, who has been named as the top-selling certified digital artist of all time! The "Roar" singer definitely has something to roar about: she reached 72 million cumulative Digital Single certifications, confirmed by the RIAA. The record before Katy broke it was at 70 million sales, to put things into perspective! With only three albums under her belt (One Of The Boys, Teenage Dream, and Prism), the "Dark Horse" enchantress has had 18 hit songs in her 5 year career, which is mighty impressive. For even more perspective on how Perry's feat is an achievement, her fellow pop counterparts Rihanna and Taylor Swift have accumulated 52 and 51 million digital sale certifications. Way to slay, Katy! What's next for Katy Perry? She's currently on a world tour supporting her latest album, Prism, and we don't see her career slowing down anytime soon. Congrats again, Perry!