"I Kissed A Girl" is a song performed by American recording artist Katy Perry for her debut album One of the Boys (2008). It was released as the album's first single on June 16, 2008 through Capitol Records. It was written by Perry, Lukasz Gottwald, Max Martin and Cathy Dennis, with production helmed by Gottwald under his production name Dr. Luke. Perry says the song is "about the magical beauty of a woman". The song is a electro-rock number that runs through a throbbing beat and contains influences of New Wave.

"I Kissed a Girl" received mixed reception for music critics upon reviewing the parent album, praising its sound and structure while highly criticizing its lyrical content. The song drew controversy for its irreverent lyrics and was notably criticized by numerous critics and singers. The song experienced commercial success domestically as well as internationally. It topped the Billboard Hot 100 chart for seven consecutive weeks, becoming the 1000th chart-topper of the Rock Era. The single has sold over 4,155,000 digital copies in the US alone. "I Kissed a Girl" is one of six Perry songs to top 4 million paid downloads in the US, the others being "Hot n Cold", "California Gurls", "Firework", "E.T." and "Teenage Dream". It has reached the summit of the charts in nearly twenty countries, including Australia, Canada, Ireland and the United Kingdom while peaking within the top five in other European countries like Belgium, Finland and France. The song was one of the best selling singles worldwide, selling 8 million copies, became the 21st song with the most paid downloads in history.

"I Kissed a Girl" may refer to:

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".

Jill Sobule (born January 16, 1959 in Denver, Colorado) is an American singer-songwriter best known for the 1995 single "I Kissed a Girl", and "Supermodel" from the soundtrack of the 1995 film Clueless. Her folk-inflected compositions alternate between ironic, story-driven character studies and emotive ballads, a duality reminiscent of such 1970s American songwriters as Warren Zevon, Harry Nilsson, Loudon Wainwright III, Harry Chapin, and Randy Newman. Autobiographical elements, including Sobule's Jewish heritage and her adolescent battles with anorexia and depression, frequently occur in Sobule's writing. An appreciable percentage of her work is also dedicated to detailed accounts of both her own fictional female creations and such troubled but celebrated women as Joey Heatherton and Mary Kay Letourneau, whose stories are usually used to make ironic comments about fame and celebrity. In 2009 she released an album funded entirely by fan donations.

To date Sobule has released seven studio albums of original songs, three EPs, and a greatest hits compilation album. Sobule's output also includes original songs available only via the Internet, a cover of Robert Earl Keen's Christmas novelty track "Merry Christmas from the Family," and a version of the late Warren Zevon's "Don't Let Us Get Sick" included on both Sobule's acoustic album and on a posthumous Zevon tribute record. Though Sobule remains more of an underground artist, playing for fans across the United States in smaller, more personal settings, her albums are frequently critically acclaimed and her music industry supporters include Todd Rundgren, Tom Morello, Steve Earle, Richard Barone, and Eagles member Don Henley.