Is the ending theme in Ooots really CD9?
 

Because listening to the one from the movie and the one from the CD9 music video makes it obvious that while the lyrics are similar, it's definitely not them because the film version doesn't have singers with accents.
EDIT: After checking the credits on the Blu Ray, I've come to the conclusion that we'll never know who sang this version unless the producers or somebody reveal it because the credits don't list who sings it and it's not CD9 or Hometown because they did it for Latin America and Ireland and UK respectively