The Grammy Awards are often considered one of the most prestigious awards in the music industry, but they have also been the source of much controversy over the years.
Macklemore & Ryan Lewis' win over Kendrick Lamar in 2014: Macklemore & Ryan Lewis won Best Rap Album at the 56th Grammy Awards, beating Kendrick Lamar, who was widely considered the favorite to win.
Milli Vanilli's Best New Artist win in 1990: Milli Vanilli's win was one of the biggest controversies in Grammy history, as it was later revealed that the duo did not actually sing on their own album.
Beck's Album of the Year win over Beyoncé: Beck's win for Morning Phase was met with surprise and disappointment by many, who felt that Beyoncé's album was a more deserving winner.