“Firework” is a song by American recording artist Katy Perry. The song was written by Katy Perry, Mikkel S. Eriksen, Tor Erik Hermansen, Sandy Wilhelm, Ester Dean, and produced by Stargate and Sandy Vee for Perry’s second studio album, Teenage Dream (2010). The song is a self-empowerment anthem with inspirational lyrics, and was considered by Perry as the most important song for her on Teenage Dream.
“Firework” received good reviews from music critics, with some noticing its catchy melody and danceable beat and comparing it to songs by English band Coldplay. The song was commercially successful, reaching the top spot on Billboard Hot 100 and the top 5 on twenty charts around the world. The song was released on October 16, 2010 by Capitol Records as the third single from the album. The song was certified 4x platinum by the Recording Industry Association of America (RIAA) for the shipment of four millions copies across United States. On the week ending of January 8, 2011, “Firework” sold 509,000 digital downloads in the US, which is the second highest amount ever sold by a female artist, only behind Kesha’s “Tik Tok”, who sold 610,000 copies in a week, and fourth highest overall. The song is the third consecutive number-one single of the same album, the last female singer who achieved this was Monica in 1998.
An accompanying music video, directed by Dave Meyers, was released on October 28, 2010. It portrayed Perry singing and dancing around Budapest, with intercalating scenes of shy teenagers become confident in themselves. An open casting call for the music video drew an unprecedented 38,000 applicants. On MuchMusic’s top 50 videos of 2010, “Firework” reached the top position. The music video was said to be a more upbeat take on Christina Aguilera’s message in “Beautiful”.