Michael Fassbender "used to have hair down to his chest".

The actor is an avid fan of metal music.

In his youth Michael donned himself in the apparel that his favourite bands wore.

"When me and my friend Mike had a band I used to have hair down to my chest, ten-hole Dr. Martens [shoes] and combat shorts cut at the knee," he told British newspaper The Sun.

"My favourites were Metallica, Sepultura and anything off Slayer's Reign In Blood."

Michael made it a point to memorise song lyrics by heart.

"I love the bit in Seasons In The Abyss by Slayer, and I worked hard to learn Megadeath's Rust In Peace when I was younger," he gushed.

Unfortunately not everyone appreciates his taste in music. During meals with loved ones, Michael was reluctant to share his most cherished tunes.

"No one wants to hear Metallica at lunch," he explained.