The official released version features minor lyric changes in the bridge. On February 11, the day before its premiere, the final reworked version with new lines and structure leaked onto the internet.
then issued that the song would be available for digital download from iTunes on February 13, 2012.
In 2012, the song received an official release as the lead single from the album's re-release. It is a very real, raw song.' The song ' Firework' is referenced in the bridge of the song.'Īccording to MTV.com the song surfaced on the internet on Wednesday, December 29, 2010. Katy sings with so much emotion and when I heard the chorus for the first time it gave me chills. In an interview with Alexz Kazemi, McKee talked about the song, ' The other one I wrote on, “Part of Me” I heard is gonna be on a bonus version or something. By the time Perry heard the third line, she shouted, “ We’re buying you a car!”. According to Rolling Stone magazine, McKee stayed up all night writing lyrics. Perry and McKee had been casual friends before Perry called her because she wanted help on a song called “Part of Me'.