Rihanna

It's that time again -- let's take a moment to gawk at some of the best and worst dressed celebs of the week. Whether it's Mila Kunis stunning in an Alexander McQueen gown for one of the 'Oz the Great and Powerful' premieres or Rihanna raising eyebrows with doubled up jeans (if that's indeed what they were), there were several head-turning ensembles worthy of praise ... and dissection.

Fact: Everyone loves some reggae tunes from Bob Marley. And if you don't, you have no soul. Which was extremely evident when the usually still and reserved audience at the Grammy awards decided to actually sing and dance while standing up out of their seats. Host LL Cool J ordered everyone in the audience to painfully "get up, stand up" while Bruno Mars opened the Bob Marley tribute wit

Rihanna never stops making music. Even though her 'Unapologetic' album just dropped in November, RiRi is continuing to work on new songs, one of which reportedly features Australian rapper Iggy Azalea.

Rihanna loves Instagram. We all know this, as we've enjoyed the variety of topless shots the singer has shared with increasing frequency. We also learn more and more about her nebulous relationship with Chris Brown from her Instagram feed. However, it seems that the sexed up and sexy singer may have confirmed that she is indeed single with an e-card – make that Ri-Card -- that she created. Read Mo

Will Nicki Minaj and Rihanna dominate the 2012 American Music Awards winners list as they did with nominations? Both ladies led the nominee pack for the 2012 American Music Awards, nabbing four nods each for the fan-voted show, but One Direction and Justin Bieber are hot on their trail with three apiece.

Uh oh. BFFs Katy Perry and Rihanna may be on the outs -- and Chris Brown may be to blame.

Twitter. It’s not just a social messaging service but a battleground! Rihanna got into a 140-character feud with thoroughly plastic surgery-ed comedienne Joan Rivers after Rivers was aghast at RiRi’s confession to Oprah (that she still loves her abusive ex Chris Brown). Now, Rivers’ ‘Fashion Police’ co-star has thrown her opinionated and outspoken self into the mess. Which side did Kelly O. take?

Rihanna is the cover girl for an upcoming issue of the high end fashion bible Harper’s Bazaar. The cover image and photo spread leaked, and there appears to be two separate covers, which these women’s mags often do. One cover is reserved for subscribers, while the other lands on the newsstand.

Rihanna is feeling  the American version of ‘X Factor.’ The pop diva is scheduled to perform on the results episode of the show this week, which airs on Thursday, Nov. 17. This marks RiRi’s second go-round on the show since the debut season kicked off in September.