Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer, songwriter, and television judge. She is known for influencing the pop music of the 2010s decade. Pursuing a career in gospel music at age 16, Perry released her commercially unsuccessful debut album, Katy Hudson (2001), under Red Hill Records. She moved to Los Angeles to create secular music, and later adopted the stage name "Katy Perry" from her mother's maiden name. After being dropped by Columbia Records, Perry signed a recording contract with Capitol Records in April 2007.Perry rose to fame with her second album and major label debut, One of the Boys (2008), a pop rock record containing her debut single "I Kissed a Girl" and follow-up "Hot n Cold", which reached number one and three on the U.S. Billboard Hot 100, respectively. The disco-influenced Teenage Dream (2010) spawned five U.S. number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T.", and "Last Friday Night (T.G.I.F.)"—becoming the first album by a female soloist to do so. A reissue titled Teenage Dream: The Complete Confection (2012) subsequently yielded the U.S. number one single "Part of Me". Her fourth album Prism (2013) focused on self-empowerment and relationships. With the music videos for its tracks "Roar" and "Dark Horse", Perry became the first artist to have multiple videos reach one billion views on Vevo. The electropop album Witness (2017) ventured into themes of liberation and politics, while Smile (2020) was influenced by Perry's motherhood. She later embarked on her first concert residency, Play (2021–2022).
Perry is one of the best-selling music artists of all time, having sold over 143 million records worldwide. All of her studio albums released under Capitol have individually surpassed one billion streams on Spotify. She has nine U.S. number one singles, three U.S. number one albums, and has received various accolades, including four Guinness World Records, five Billboard Music Awards, five American Music Awards, a Brit Award, and a Juno Award. Perry has been included in the annual Forbes lists of highest-earning women in music from 2011 to 2019. Her critically acclaimed Super Bowl XLIX halftime show was the most viewed halftime in television history. Outside of music, Perry has released an autobiographical documentary titled Katy Perry: Part of Me (2012), voiced Smurfette in The Smurfs film series, and launched her own shoe line in 2017. She began serving as a judge on American Idol during its sixteenth season in 2018.