The tune is adapted from The Sleeping Beauty ballet by Pyotr Ilyich Tchaikovsky, specifically a piece from Act 1, The Garland Waltz, or as it has become known in popular culture, Sleeping Beauty's Waltz. Emily Osment also did a cover of the song for the 50th Anniversary Platinum Edition release of Sleeping Beauty in 2008 and is on the album Princess Mania.
It was also covered by No Secrets on the album Disneymania 2, as 'Once Upon Another Dream'. ' Once Upon a Dream' is the famous romantic-love song sung by Princess Aurora, as well as Prince Phillip, and is also the ending song to the film, Sleeping Beauty.
“ You know I'm really not supposed to speak to strangers, but We've met before.” ― Aurora, on her second meeting with Phillip, before the song.
