“Teenage Dream” is a song by American recording artist Katy Perry. “Teenage Dream” is a mid-tempo pop song with a retro sound. It is styled in the genres of power pop and electropop, while taking influence from other genres such as disco and pop rock. Perry starts the song in a high-pitched voice while her vocals grow stronger as the song progresses. Lyrically “Teenage Dream” discusses being with a lover that makes one feel young again.