Since 2008, when Katy Perry debuted with Capitol Records with the song "One of the Boys," she has amassed a total of 115 billion streams and sold over 70 million albums and 143 million tracks worldwide. Katy is the best-selling artist in Capitol's history and is one of only twelve artists in history to surpass 100 million certified units with their solo singles – and the very first artist to achieve the elite status of Capitol Records in 2015 with 10 million certified RIAA singles. She also became the first artist in RIAA history to receive three RIAA diamond singles – for the songs "Firework," "Dark Horse," and "Roar." Since then, she has added several more to her collection, with "California Gurls" (feat. Snoop Dogg), "E.T.," and "Teenage Dream," whose single and album both received DIAMOND status. Katy now has six singles and one album, totaling SEVEN titles with diamond certification.