Today is the anniversary of Freddie Mercury's last concert fronting Queen.  It took place in 1986 in front of 120,000 at Knebworth. His last show ever would be on April 14, 1988 at an AIDS awareness and fund raising concert with Cliff Richard.  By then, the ravages of the disease were quite evident, but Mercury rose to the occasion and did what he did to deserve recognition as one of the most compelling lead vocalists in history.