From the Wikipedia entry of Skrillex's song "Scary Monsters and Nice Sprites":
And that's how we went from this:
To this:
"It is prominently a dubstep song that uses elements of electro house and progressive house. It also uses a vocal sample of exclamations from Rachael Nedrow (also known as speedstackinggirl") shouting "Yes, oh my gosh!""
And that's how we went from this:
To this:
