Esperanza Spalding's Best New Artist win came out of left-field.
Why jaws dropped:
Bassist and singer Esperanza Spalding has made quite the name for herself in the jazz community with hit tracks like "I Know You Know" and "Black Gold." But when she took the stage to receive the award for Best New Artist in 2011, people everywhere scratched their heads, wondering who she was and how she could possibly have triumphed over Mumford & Sons, Drake, Justin Bieber, and Florence & The Machine.
Little did we know, the Berklee College of Music alum had already wowed audiences at the White House, a Nobel Prize ceremony, and as the opening act at Prince concerts.
Photo: © Paul Buck/epa/Corbis