Talk:My Little Pony Equestria Girls: Rainbow Rocks/@comment-24791619-20160107154331/@comment-10390252-20160107155713

It all started back when they were recording the first season of Friendship is Magic. Tara had a packed recording schedule in the US and wasn't able to travel up to Canada to record Twilight Sparkle's singing vocals, so they got Rebecca to record them instead and that's been the way they've done it ever since.