In the late 80s, boy group Milli Vanilli won over hearts with their catchy pop songs like “Blame It on the Rain” and “Girl You Know It’s True.” The duo even won a Best New Artist Grammy in 1990 Out of nowhere, it was revealed that Milli Vanilli was a total fraud and members Fabrice Morvan and Rob Pilatus were lip-syncing the whole time. The two had to return their Grammy; the first time it’s ever happened. "We wanted to give the Grammy back. We felt in our hearts that it would be a good gesture to do that. But they made it look as though [the Academy] wanted it back,” said Morvan years later.