It looks like Katie Holmes isn’t the only celeb changing up her look this week. Last night Fergie turned out to the March of Dimes Beauty Ball with a chic new do unlike anything we’ve seen on her before. The newest M.A.C. Viva Glam spokesperson traded her blonde locks for extra-long, stick-straight chocolate brown tresses. And even her signature eyebrow piercing — which she wears as a celebration of kicking her crystal meth addiction years ago — was nowhere in sight. Tell us: What do you think of Fergie’s new hair? Should she bring back her trademark brow piercing?