The Beatles were rejected by Decca Records in 1961, less than a year before Beatlemania swept the UK.
After recording fifteen tracks for the now infamous Decca Audition, the Fab Four was told that "guitar groups are on their way out" and "the Beatles have no future in show business." Famous last words! Decca instead chose a group called the Tremoloes, who were local and would not cost as much money. This ill-fated decision is widely considered to be one of the biggest mistakes in music history!