Nominees in more than 75 categories have been named for the 55th Annual Grammy Awards, to be broadcast live on CBS television stations from the Staples Center in Los Angeles, California on Sunday, Feb. 10, 2013. Mumford & Sons was among the top nominees with nods for Album of the Year, Best Americana Album and Best Rock Performance. [To view the full article, including a list of nominees in the Roots Music Field, click on the headline.]