Katy Perry was just 15 when she pursued her career in music. In doing so, she left her high school, Dos Pueblos High School. However, she has completed her General Educational Development requirements.
After dropping out of high school, Katy studied at Music Academy of the West for a brief period. There, she caught the attention of rock artists Jennifer Knapp and Steve Thomas and moved with them to Nashville, Tennessee to hone her writing skill. She also learned to play guitar and began recording demo tracks.
Eventually, on 6 March 2001, she released her debut album of gospel tracks called Katy Hudson. The album was released on Red Hill Records label and was a critical success but failed commercially as it sold only about 200 copies.
She began writing songs with Glen Ballard and got signed to The Island Def Jam Music Group affiliate Java recording label in 2004. However, the label was dropped while Perry was still working on her solo record. She then worked with Columbia Records and Taxi Music before gaining a minor success as a playback singer of the soundtrack Simple from the film The Sisterhood of the Travelling Pants.
Katy got signed to Capitol Records in April 2007, following which she began co-writing the songs I Kissed a Girl and Hot n Cold with Dr. Luke. I Kissed a Girl ultimately went on to become a big break after getting released in April 2008. It became the title track of her second album One of the Boys which went multi-platinum having sold more than 7 million copies worldwide. She has set many records in her later career.