System of a Down's Serj Tankian Sings On New Song From Supergroup O.R.k.

System of a Down's Serj Tankian sings on a new song from supergroup O.R.k. Listen to the song "Black Blooms" below.

The group features current and former members of Porcupine Tree and King Crimson. O.R.k's new album Ramagehead , will be released Feb. 22. Click here for more...

 
SHROOM

SHROOM

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