Professional Griefers

"Professional Griefers" is a song by Canadian electronic music producer deadmau5 and features vocals from American musician Gerard Way from My Chemical Romance. The song is featured on deadmau5's sixth studio album "Album Title Goes Here." 
Only live recordings of the song as an instrumental could be found around the internet in late 2011 and early 2012. The instrumental version of the song was played during the official launch of Minecraft.
deadmau5 played the song with vocals during a live Internet stream and fans were able to guess that the vocal were performed by Gerard Way because of this distinctive voice. A preview for the song was uploaded on deadmau5's YouTube channel on July 6, 2012 and the song was finally released on iTunes and Beatport on August 14, 2012. 
The song was featured in the soundtrack for Electronic Arts' FIFA 13.