Singer demonstrates cool 'two notes at once' talent, goes viral

This woman can make the sound of two notes at once. She makes it seem so easy, you'd think it'd be something she learned as a party trick. But the singer, Anna-Maria Hefele, has been doing this professionally for nearly a decade.

Whether or not you already knew the technique--called "throat singing" or "overtone singing"--existed, you have to admit it's pretty cool.

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The video went viral with over 1 million views in less than a week, with many YouTube users commenting that they had never heard of this incredible talent. The technique, though, has long been in practice. Its origins are unknown but are thought to go very far back in Mongolia and the Siberian region of Tuva.