The Holy Grail of perhaps all award-show upsets. Heavy music had gotten short shrift from the Grammy folks since its inception, so the introduction of the Best Hard Rock/Metal category in 1989 was supposed to be the long-awaited mainstream coronation of Metallica (who were nominated for ...And Justice For All and who were also booked to perform). The prize went to Jethro Tull, who received boos upon the announcement and were confused they were even nominated in the first place.
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We run down the surprising losses (and wins) over the years at the music industry's big show