The description of Katty Perry Songs Discography
American singer Katy Perry has released five studio albums, one live album, two extended plays (EP), 27 singles (including three as the featured artist), and five promotional singles. Perry has been certified for 98 million digital singles and 6 million albums in the United States. She is also the fourth best selling digital singles artist in the US according to the Recording Industry Association of America (RIAA).[Throughout her career, Perry has sold over 40 million albums and 125 million singles globally. She currently holds the record for most 5-million-selling singles in the United States, with six of her singles selling over 5 million (in order of release date: "Hot n Cold", "California Gurls", "Firework", "E.T.", "Roar", and "Dark Horse"). Perry also holds the record for the most 6-million-selling songs, with three of her songs—"Firework", "Roar", and "Dark Horse"—selling over 6 million copies. All three have also received Diamond song certifications from the RIAA, making her the first artist to accomplish such a feat.
At age 16, she released a self-titled gospel album in March 2001 under her real name Katy Hudson, which failed to chart in any music market. After Perry signed with Capitol Records in April 2007, she released her second album, One of the Boys, in June 2008. Its singles "I Kissed a Girl" and "Hot n Cold" both topped charts in Austria, Canada, Germany, and Switzerland, and have been certified quintuple platinum by the RIAA. The album peaked within the top ten in the United States, Austria, Canada, France, Germany, and Switzerland. Throughout 2009 and 2010, Perry was featured on two singles. The first was on Colorado-based band 3OH!3's song "Starstrukk", and the second was a collaboration with Timbaland on "If We Ever Meet Again", from his album Shock Value II.