After changing her last name to Perry (her mother's maiden name) so that she allegedly would not be confused with actress Kate Hudson, Katy released an EP album called "Ur So Gay". This song has been criticized and labeled homophobic. On June 17, 2008, Perry released her first pop album called "One of the Boys" with singles including "I Kissed a Girl" (her first number-one hit), "Hot N Cold", and "One of the Boys".