"Scary Monsters and Nice Sprites" is the second EP by American electronic music producer Skrillex. It was released exclusively through Beatport on October 22, 2010 through mau5trap and Big Beat Records, while being released on December 20th for digital download via other online retailers and on March 1, 2011 as a physical release. Recorded in 2010 at his apartment using a laptop, the EP is prominently a dubstep record while also using elements of electro and progressive house. "Rock n' Roll (Will Take You to the Mountain)" and "Scary Monsters and Nice Sprites" use a sound clip of Rachael Nedrow (also known as "speedstackinggirl") shouting "Yes, oh my God!". The EP features guest contributions from Penny, Foreign Beggars and Bare Noize, while also featuring remixes done by Noisia, Zedd and Bare Noize. It won two Grammy's at the 54th Annual Grammy Awards; one for Best Dance Recording, and the other for Best Dance/Electronica Album.