Mary J. Blige will be the guest judge on tonight's episode of the Fashion Show. Unlike many designer-wannabe celebrities out there, Blige has actually built up some fashion cred, especially over the past year. She collaborated with her BFF Catherine Malandrino on a line of t-shirts called FFAWN+CATHERINE MALANDRINO, and launched Melodies by MJB, a collection of eyewear available at Nordstrom and online here, this past summer. Her latest designs for SS11 include classic aviators, retro cat eyes, and some serious stunna shades. Considering that Blige has amassed over 500 personal pairs of sunglasses, it's safe to say that she knows her stuff. Tune into the Fashion Show tonight on Bravo at 10pm EST.