Katy Perry went backless in a crystal cocktail dress at the 57th Annual Grammy Awards in Los Angeles Sunday.
Stylist Johnny Wujek dressed the 30-year-old pop diva in a belted beaded midi-length Zuhair Murad frock with silver Sophia Webster stilettos and chandelier earrings.
Giving Fashion Police’s Kelly Osbourne a double take, the Roar hitmaker rocked a wavy purple bob and matching mani-pedi on the red carpet.
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Back it up! Katy Perry went backless in a crystal cocktail dress at the 57th Annual Grammy Awards in Los Angeles Sunday
Katy – who lost for best pop duo and best pop vocal album – has been nominated a total 13 times and has yet to win.
Perry – born Katheryn Hudson – tweeted her 68.4M followers that she’ll be performing her ‘most personal’ song off Prism, By the Grace of God.
Meanwhile, her longtime rival Taylor Swift – who’s presenting Best New Artist – bared her long legs in a teal Elie Saab high-low gown.
Dripping in jewels: Stylist Johnny Wujek dressed the 30-year-old pop diva in a belted beaded midi-length Zuhair Murad frock with silver stilettos and chandelier earrings
Purple-hued ‘do: Giving Fashion Police’s Kelly Osbourne a double take, the Roar hitmaker rocked a wavy purple bob and matching mani-pedi on the red carpet
Sad face: Katy – who lost for best pop duo and best pop vocal album – has been nominated a total 13 times and has yet to win
Measuring up? Perry and Grammy nominee Miley Cyrus goofed around by cupping each other’s assets behind the scenes
Gal pals: The This is How We Do singer bumped into fellow nominee Nicki Minaj taking the plunge in a black form-fitting Tom Ford gown
Hey girl! Grammy nominee Rihanna looked besotted with the newly lavender-tressed beauty as they chatted it up during a commercial break
Why didn’t I think of that? Katy looked impressed with Riri’s pink manicure and massively poofy Giambattista Valli gown
Announcement:Â Perry – born Katheryn Hudson – tweeted her 68.4M followers that she’ll be performing her ‘most personal’ song off Prism, By the Grace of God
Taylor was seated in the front row, not far from her frenemy Katy in the packed Staples Center.
The 25-year-old blonde’s hit song Shake It Off lost for record of the year, song of the year, and pop solo performance.
Their alleged feud heated up last September, when Taylor told Rolling Stone about a ‘straight-up enemy’ pop star whom she refused to name.
Caped crusader: Later, Katy kept fans guessing about her hair colour by rocking middle-parted raven locks onstage while performing By The Grace of God
Domestic violence anthem? A back-up dancer swaying behind a screen pretended to be Perry’s shadow as she belted the emotional ballad originally penned about her 2012 divorce from Russell Brand
Serious style: Wujek walked closely behind the Double Rainbow belter backstage after her stirring performance, which featured somber intros from President Obama and domestic abuse activist Brooke Axtell
Roar! Sam Smith looked like he had something to get off his chest to his pop star pal
Networking: The award-winning stars were happy to pose with Lucian Grainge – the chairman and chief executive officer of Universal Music Group
Well done! Katy was seen congratulating Beck on his impressive win
Dazzling: The singer looked incredible in her revealing ensemble
Hours later, Katy tweeted: ‘Watch out for the Regina George in sheep’s clothing…’ in a pointed Mean Girls reference to the Blank Space singer.
The bad blood evidently stems from three of Swift’s back-up dancers quitting during an arena tour to go work for Perry, according to TMZ.
The pop princesses also share an ex-boyfriend in common, John Mayer, whom the California Gurl is reportedly dating again.
Up for three Grammys: Meanwhile, her longtime rival Taylor Swift – who’s presenting Best New Artist – bared her long legs in a teal Elie Saab high-low gown
Peacocking: Taylor was seated in the front row, not far from her frenemy Katy in the packed Staples Center
Sad face: The 25-year-old blonde’s hit song Shake It Off lost for record of the year, song of the year, and pop solo performance
The way they were: Their alleged feud heated up last September, when Taylor told Rolling Stone about a ‘straight-up enemy’ pop star whom she refused to name
Bad blood? The bad blood evidently stems from three of Swift’s back-up dancers quitting during an arena tour to go work for Perry (pictured in 2011)
However, the womanising 37-year-old was seen entering the Staples Center solo.
‘You can see me at the Grammy Awards doing what I do best,’ Mayer joked on The Late Late Show Friday.
‘Being avoided by Taylor Swift.’
Backstage at the Super Bowl: The pop princesses also share an ex-boyfriend in common, John Mayer, whom the California Gurl is reportedly dating again
‘You can see me at the Grammy Awards doing what I do best. Being avoided by Taylor Swift!’ However, the womanising 37-year-old was seen entering the Staples Center solo
Katy is still riding high from her Super Bowl XLIX performance, which was the most-watched halftime show with a record-breaking 114.4M tuning in.
The Dark Horse diva will next take her Prismatic World Tour to Spain’s Palau Saint Jordi in Barcelona on February 16 alongside opener Charli XCX.
EPIX will air the world premiere of her pre-taped Prismatic World Tour special on March 28.
The Grammys will be on UK TV on Monday 9 February at 9pm on 4Music (Freeview 18, Sky 360 and Virgin 330).
Triumphant: Katy is still riding high from her Super Bowl XLIX performance, which was the most-watched halftime show with a record-breaking 114.4M tuning in
Back on the road: The Dark Horse diva will next take her Prismatic World Tour to Spain’s Palau Saint Jordi in Barcelona on February 16 alongside opener Charli XCX
