Best New Artist, 1970
Winner: Crosby, Stills & Nash
All-conquering rock titans Led Zeppelin are among the most notorious Grammy underachievers of all time. Despite being one of the biggest and most influential bands ever, their only Grammy came in 2005 - a Lifetime Achievement award given 25 years after the group disbanded.
Their first big loss came in 1970, when they were overlooked for the Best New Artist prize. Eventual winners Crosby, Stills & Nash are credible and successful artists in their own right, but can anyone really claim they're more deserving of a Grammy than Zeppelin?