Written and produced by Adam Watts and Andy Dodd, "This Is Me" reached number 9 on the US Billboard Hot 100.
Mitchie wrote the song in the beginning of the film, and was later heard (in an acoustic version on piano), but not seen, by Shane, who set out to search for the girl behind the amazing voice.
The two songs are combined to make the original version, as featured on the Camp Rock soundtrack CD.
Three days before the premiere of the film, on June 17, the song was released onto the iTunes Store for digital purchase.
The song was later part of the setlist for Demi Lovato: Live in Concert (2009-2010) and The Neon Lights Tour (2014).
The Spanish version, "Lo Que Soy", was performed on the South American dates of the Jonas Brothers World Tour.
"Lo Que Soy" was included on the deluxe edition of Lovato's debut album Don't Forget (2008).