[UPDATE 2] Ed Sheeran and Pharrell Williams revealed four major categories of nominations for the 57th Annual Grammy Awards Friday AM on CBS This Morning. An hour later Ryan Seacrest announced the nods for Best Solo Pop Performance. The Recording Academy will be revealing other nominees via Twitter through 2PM today. Then a list of the nominees for 82 of the 83 categories will be made available on GRAMMY.com. The Album of the Year nominees will be revealed tonight during CBS' A Very Special Christmas. The 57th Annual GRAMMY Awards airs on Feb 8 at 8 pm EST on CBS....

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