According to TMZ, Sib Hashian collapsed and died mid set while performing on the legends of Rock Cruise yest60: Bostonerday.  Sib was the one that was always sporting that huge afro hairstyle.  The legends of Rock Cruise will continue with assorted artists filling in and doing tributes to Sib.  Our best to his friends, family and fans.  I suppose it's some consolation that he died doing what he loved most.  Sib was 67.  Sad that Boston's set was cut way short last year at Moondance, due to storms rolling in.

TMZ.com