Jethro Tull 'Crest of a Knave' (Won)

1989 Best Hard Rock/Metal Recording

When you're introducing a new category to an award show, it's very important to make sure that your nominees are actually representative of said category. So Grammy voters appeared to have nailed it when they announced the likes of AC/DC, Iggy Pop, Jane's Addiction and Metallica. And then instead of awarding ...And Justice For All the award they committed one of best-known blunders in Grammy history by giving it to Jethro Tull's non-metal record, prompting a chorus of boos from the crowd.