A standalone single released in 2014, "Birthday" samples the iconic bassline from The Association's 1966 hit "Windy".
- "Birthday" was co-written by Katy Perry, Dr. Luke, Max Martin, Cirkut, and Bonnie McKee.
- The track was released as a promotional single on April 21, 2014, by Capitol Records.
- The music video features Perry and her friends disguising themselves as performers to surprise children and adults at birthday parties.
Katy Perry is an American singer and songwriter from Santa Barbara, California, known for her colourful and theatrical music. In 2014, she was at the height of her global fame following the success of her 2013 album Prism.
Tracklist
