Volbeat's 'Outlaw Gentlemen & Shady Ladies' album arrives next week, but the band has an early treat for their fans. They've made 'Room 24,' their collaboration with famous Mercyful Fate leader King Diamond, available to their fans as a free download.

The track finds Volbeat frontman Michael Poulsen trading off vocals with King Diamond, while chugging, wailing guitars and driving drums provide the musical backdrop. The song features a number of time signature shifts, both speeding up the tempo and offering a few heavy moments as well.

Poulsen recently spoke of working with King Diamond, "I'm a huge fan of Mercyful Fate and King Diamond. Having King on this record is a huge privilege. Normally, it's not something he does. He wrote his own lines and it is half my lyrics and half his. It's a weird, scary story and he's the perfect person for it."

After completing the cut, the band turned the song over to Jacob Hansen for mastering and now the track is available for your listening pleasure.

Volbeat's 'Outlaw Gentlemen & Shady Ladies' album arrives April 9 and is currently available for pre-order via iTunes here.

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