"Butterfly" is a song by Swedish bubblegum dance group Smile.dk, from their 1998 album Smile.
In honor of its popularity, the song was remixed for the franchise's 2008 installment Dance Dance Revolution X, a mix primarily intended to celebrate the 10-year anniversary of the series.
This version was released as a single on May 13, 2009, and was titled "Butterfly '09 (United Forces Airplay Edit)".
[2] The song was used on the made in China toys, most typically cell phones.
It was briefly featured in the sixth episode of the Marvel Cinematic Universe Disney+ series WandaVision, titled "All-New Halloween Spooktacular!"