Over the years, countless cover bands of big names in rock and metal have emerged, but have you ever imagined seeing instruments that play classic Metallica and Nirvana ?
An internet user with an Instagram account called One Hacker Band used his knowledge of technology and programming to build instruments that play complete sections of songs without human assistance.
Deep Purple on their own .
The result is impressive and even a little frightening to watch. Check out some of the songs played by the "robot band":
READ ALSO: 10-year-old boy rocks out playing drums on Metallica's new song; watch the video