Instruct: Classify the given Amazon review as either positive or negative.
Query: Rock 'N' Roll For Eternity

Ozzy & the boys serve up a piece of unique and truly outstanding work here, this music is anthemic to the period. Black Sabbath rules then and now, fifty years from now people will still crave this sound. It has everything a Sab fan desires, may God bless you Black Sabbath for all the wonderful tunes you gave us. LOVE YOU GUYS !!!