Katy Perry

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The couple was noticed cosying up during the Paris Fashion Week.

Winners of The 2011 Nickelodeon Kid's Choice Awards(PICTURES)

Katy Perry, Rihanna, Bruno Mars, Taylor Swift, Nicki Minaj are among those who set the stage on fire with their high-voltage performances.

The Grammy Awards 2012 started at the Elephant in the Staples Center with Bruce Springsteen and the E Street Band performing their song entitled "We Take Care of Our Own," a metaphor for the recent troubles of the US.

Grammys 2012: The Best and Worst Dressed Celebrities of Grammys 2011

At the Las Vegas event, Perry appeared in blue hair and joined her jewellery designer Markus Molinari at the GiveLove charity.

Though the couple’s split was confirmed two days before the New Year by Russell Brand, bookies would be rewarded considering the huge interest generated for the bet, according to bookmaker William Hill.

Rihanna has been a great support for Katy over the past couple of weeks, as both are in regular touch with each other since end of Katy's marriage with Russell Brand.

American singer Lady Gaga has been identified as the top-earning female musician for 2011, by Forbes magazine.