*YES, THIS IS ACTUALLY CLAIRE CORLETT SINGING* -- Daniel Ingram confirmed that Claire Corlett *DID* sing Sweetie Belle's part in this song. In the past Michelle Creber had always done Sweetie Belle's singing parts, but that's not the case in this song. Confirmation tweet: https://twitter.com/dannyimusic/status/411885135877779456

The song "Hearts Strong As Horses" was mixed in such a way that it's possible to extract the individual vocal tracks of Claire Corlett (Sweetie Belle), Michelle Creber (Apple Bloom), and Madeleine Peters (Scootaloo).

This is Sweetie Belle's track.

Music by Daniel Ingram.