It'd be unfair for anyone to expect B-town to repeat the choreographic cross-cultural moment of "Single Ladies" so quickly. So why not take a page from sunglasses mannequin KanYe West's playbook. Venetian shades? Meet Sasha's drapes. Two new clips from Beyoncé's Fierce LP popped this morning: a low contrast vid for the balladic "Halo," which speaks metaphorically about rays of ...