Rap is an overall winner, but loser at the Grammys

January 23, 2012 9:34:16 AM PST
Since its beginnings in the 1970s, rap music has transformed from an underground, street-based sound to a definitive part of pop culture, transcending race and becoming one of the strongest - and most prolific - voices of today's generation. But at the Grammy Awards, rap has had a long-lasting losing streak in the top categories.