Veteran hard rock vocalist Paul Shortino (ROUGH CUTT, QUIET RIOT, KING KOBRA) paid tribute to Ronnie James Dio last night (Thursday, May 16) on the third anniversary of the former BLACK SABBATH and RAINBOW frontman's death by singing an a cappella version of the classic SABBATH song "Heaven And Hell" at Sala Manolita in Lleida, Spain. Fan-filmed video footage of the performance can be seen below.Ronnie died of stomach cancer on May 16, 2010 at the age of 67. Dio was renowned throughout the world as one of the greatest and most influential vocalists in heavy metal history. The singer, who was recording and touring with SABBATH offshoot HEAVEN & HELL prior to his illness, was diagnosed with stomach cancer in late 2009. He underwent chemotherapy and made what is now his final public appearance in April 2010 at the Revolver Golden Gods Awards in Los Angeles.