Grammy-winning Esperanza Spalding to release new studio album 'Radio Music Society'

When relative unknown singer and bassist Esperanza Spalding defied the odds and beat off competition from Justin Bieber, Drake, Florence & The Machine and Mumford & Sons to win the 2011 Grammy Award for Best New Artist, stunned music critics, fans and bloggers took to the web to express their amazement at what was seemingly one of the biggest upsets in the history of the awards.



