Here is a comprehensive summary of the Wikipedia article on Katy Perry:

Katheryn Elizabeth Hudson, known professionally as Katy Perry, is an American pop icon born on October 25, 1984, who began her career with a gospel album in 2001 before rising to fame with her 2008 album One of the Boys. Her 2010 record Teenage Dream made history as the only album by a woman to produce five U.S. number-one singles, including "Firework" and "California Gurls," followed by further hits like "Roar" and "Dark Horse" from Prism (2013). With over 151 million records sold, she is one of the best-selling artists of all time, holds seven diamond certifications, and was the first artist to have multiple videos reach one billion views on YouTube. Beyond music, she has voiced Smurfette, launched a shoe line, served as a judge on American Idol (2018–2024), and even flew into space aboard Blue Origin in 2025. A vocal advocate for LGBT and women's rights, she was named a UNICEF Goodwill Ambassador in 2013 and boasts a net worth of $360 million.