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Speaking of poorly-dressed pop stars, take a look at what Rihanna failed to rock at the opening of the 40/40 Club in Brooklyn. Coffee-stained pajamas in public? Really? (9/27/2012)

Are Rihanna and Chris Brown back together?

What Were They Thinking?!

This week's worst-dressed crew includes musicians M.I.A., Rihanna, and Xtina. -- By Matt Whitfield, Yahoo! Staff