Photo: WENN.com

We need to say a huge thank you to S Club 7. Were it not for their astoundingly bad live comeback on Australian television show, Sunrise, we would not have been reminded of the following glorious moments of terrible TV.

Whether headlining Glastonbury or flogging your new single at 6am on GM:TV, the live TV performance is part of the music world. And some of the world's biggest stars of rock and pop have fallen foul in front of the cameras. Praise be to YouTube.

So, from astoundingly bad gig performances by the likes of Oasis and Franz Ferdinand to tuneless warbling from pop stars such as Girls Aloud and Katy Perry, check out some of most amazingly dreadful performances of all time...