"Scary Monsters and Nice Sprites" is a song by American electronic music producer Skrillex. It was released on October 25, 2010 as the lead single from his second EP of the same name. 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!"The song has since become his most commercially successful single to date, peaking within the charts of the United States, United Kingdom, Australia, Canada, Norway and Sweden.