Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer, songwriter, and television judge. After singing in church during her childhood, she pursued a career in gospel music as a teenager. Perry signed with Red Hill Records and released her debut studio album Katy Hudson under her birth name in 2001, which was commercially unsuccessful. She moved to Los Angeles the following year to venture into secular music after Red Hill ceased operations and she subsequently began working with producers Glen Ballard, Dr. Luke, and Max Martin. After adopting the stage name 'Katy Perry' (from her mother's maiden name) and being dropped by The Island Def Jam Music Group and Columbia Records, she signed a recording contract with Capitol Records in April 2007.
Perry rose to fame in 2008 with her second album, One of the Boys, a pop rock record containing the controversial U.S number one song "I Kissed a Girl" and "Hot n Cold". Three subsequent albums have topped the U.S. Billboard 200. The disco-influenced Teenage Dream (2010) spawned five chart-topping U.S. Billboard Hot 100 singles–"California Gurls", "Teenage Dream", "Firework", "E.T.", and "Last Friday Night (T.G.I.F.)" — becoming the first album by a woman to do so, and tied her with Michael Jackson's Bad. Billboard named Teenage Dream "one of the defining LPs from a new golden age in mega-pop." A reissue titled Teenage Dream: The Complete Confection (2012) subsequently had the chart-topping single "Part of Me" and "Wide Awake". Its follow-up record Prism (2013) incorporates pop and dance along with themes of self-reflection, everyday life, and relationships, receiving generally favorable reviews. With the music videos for its chart-topping songs "Roar" and "Dark Horse", Perry became the first artist to have multiple videos reach one billion views on Vevo. 2017's electropop Witness featured a political subtext and a theme of liberation. Her sixth studio album Smile followed in 2020, and signaled a return to her previous pop roots.
Perry is one of the world's best-selling music artists, having sold over 143 million records worldwide. Her music has been recognized for influencing the pop sound and style of the 2010s. She has nine Billboard Hot 100 number one singles and has received various awards, 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 estimated net worth as of 2016 is $125 million. In film, she released an autobiographical documentary titled Katy Perry: Part of Me in 2012, and voiced Smurfette in the 2011 film The Smurfs and its sequel in 2013. Her Super Bowl halftime show performance is the most watched in history. Perry also began serving as a judge on American Idol in 2018.