On Friday Slipknot played their first show since the passing of bassist Paul Gray. Performing for 25,000 fans at the Greek installment of the Sonisphere festival in Athens, Slipknot ripped through a 14 song set. According to a review that was posted at SonisphereFestivals.com, Gray's red jumpsuit, his mask and his bass guitar, stood symbolically at the back of the stage alongside his bandmates, who also brought back the classic red jump suits and old school style masks. Check out footage from the performance below:

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