We're generally not fans of auto-tune but it would have come in handy for this performance.

Your poor ears will not believe the sounds that appear to be coming out of pop singer Jessie J - a woman who was a judge on The Voice, no less.

Dogs will howl up and down the land and a few car alarms will probably go off.

We'd say cover your ears but then you'll miss the full effect of this Shreds performance:

Jokes! While the vocals may not belong to Jessie J, the facial expressions are all hers.