25+ Katy Perry Birthday Lyrics. Birthday is a disco song recorded by american singer katy perry for her fourth studio album, prism (2013). Birthday is a disco song recorded by american singer katy perry for her fourth studio album, prism (2013).

The song is about celebrating life and love with a special person. Original lyrics of birthday song by katy perry. Read the lyrics of birthday, a song by katy perry that compares sex to birthdays.








