Singing backwards

At the start of my project I wanted to get the model in my video to 'sing backwards', as explained in my proposal. However as I did some initial tests I saw how difficult it was and knew that if I wanted to use this idea I would have to dedicate a lot of my time to perfecting this. If it was slightly off the whole effect of the video would look disjointed and bad. One of my main goals for this video is to make it look professional and if this was badly done it would give the impression that I didn't execute the video well. I have decided to not continue with this idea as it would be better, in my opinion, to focus on the photoshop and makeup application.