Rihanna left Ago restaurant in West Hollywood on Monday wearing a one-shouldered black leather dress that kind of looked like a garbage bag. And she's hanging on to that funky bright red hair. Where's that beautiful pop star that we all know and love?

Perhaps she's dealing with a career crisis. Earlier this month the pop star was forced to scrap another date on her U.S. tour due to poor ticket sales.

Her tour promoters have blamed changes in production for some cancellations. Right.

Concert revenues are down in 2010 following a stellar 2009, with the Jonas Brothers and the stars of "American Idol" also scaling down their upcoming tours.

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