This great YouTube video reveals the secret behind your favorite singers. There was a time when being a vocalist demanded great pitch. Amazing voices rose above the rest. But is that still the case?

Nope. And it’s all thanks to Andy Hildebrand. He’s the inventor of Auto-Tune. The technology allows audio engineers to correct imperfect pitch. It can make good singers sound like incredible singers. For many years, it was a well-guarded secret within the recording industry.

Auto-Tune can be used on recorded songs and live performances. So, are modern singers just big fat liars? Maybe not. The science behind Auto-Tune is actually pretty cool. It can fix a slightly flawed performance. But it can’t turn lead into gold. This video shows you how it all works.