Artistry

Perry has a contralto vocal range.^[86] Perry's first album is of the Gospel music genre.^[10][18] She related that her perspective in music was "a bit enclosed and very strict", and everything she did was church-related.^[10] Her second album, One of the Boys, is described as "secular" and "rock," and reflects a departure from her religious musical roots.^[10] Her next album Teenage Dream featured more pop songs in the vein of Boys.^[15][87] Among Perry's musical influences are Alanis Morissette,^[13][23] Cyndi Lauper, Pat Benatar, Joan Jett, Shirley Manson,^[88] and Freddie Mercury,^[12] the late frontman of the British band Queen. In her tribute to Mercury on what would have been his 65th birthday, Perry stated; "Without you I wouldn't be making music or doing what I do because your lyrics inspired me as a 15 year old girl."^[89] She was especially inspired by the Queen song, "Killer Queen" to pursue a career in pop music after her first album.^[10] She also described Morissette's album, Jagged Little Pill as having influenced her music profoundly; even going on to work with Morissette's collaborator on the album, Glen Ballard because of that.^[17]
Perry is artistically involved in her projects, especially in the writing process. Since she could play guitar, she would start writing songs at home and present it to her producers. Perry is mostly inspired by specific moments of her life. She said it is easy for her to write songs about heartbreak.^[12] Most of the themes in One of the Boys deal with heartbreak, teen adventure, and "puking into toilets".^[17] Perry's mother reportedly told British tabloid Daily Mail that she dislikes her daughter's music, calling it "shameful and disgusting".^[10][90] Perry said her mother was misquoted and told MTV that it was false information.^[90] Her songs "Ur So Gay" and "I Kissed a Girl" have received negative reactions from both religious and gay sectors.^[90] The songs have been respectively labeled as being homophobic and promoting homosexuality, as well as "lez ploitational".^[10] Musicians Pink, Kathleen Hanna and Beth Ditto criticised "I Kissed A Girl" as offensive to the LGBT community.^[91][92][93] MTV mentioned criticism suggesting that Perry is using "bi-curiosity" as a way to sell records.^[90] Perry responded to the controversy surrounding "Ur So Gay": "It's not a negative connotation. It's not, 'you're so gay,' like, 'you're so lame,' but the fact of the matter is that this boy should've been gay. I totally understand how it could be misconstrued or whatever ... It wasn't stereotyping anyone in particular, I was talking about ex-boyfriends."^[94] Perry has written several songs for other singers, including Ashley Tisdale ("Time's Up"), Selena Gomez & the Scene ("Rock God" and "That's More Like It"), Kelly Clarkson ("Long Shot" and "I Do Not Hook Up"), Jessica James ("Bullet" and "Girl Next Door"), Lesley Roy ("Slow Goodbye"), Kady Malloy ("Wish You the Worst"), and Adam Lambert ("C