X Factor rivals Tulisa Contostavlos and Nicole Scherzinger both landed awards at the Cosmopolitan Ultimate Women of the Year on Tuesday night.
The singers took time out from mentoring this year's finalists to celebrate at a lavish ceremony at London's Victoria and Albert Museum.
The former N-Dubz star was presented with the Ultimate TV Personality award, while ex-Pussycat Doll Scherzinger was named Ultimate Fun Fearless Female.
Cheryl Cole, who was replaced by Contostavlos as a judge on the UK X Factor, and by Scherzinger on the US X Factor judging panel, won Ultimate Pop Star.
The Cosmopolitan Ultimate Women of the Year Awards 2012 with VO5 was hosted by mother-to-be Fearne Cotton.
The winner of the Editor's Choice award was Stephanie Kercher, whose sister Meredith Kercher was brutally murdered in Perugia, Italy five years ago.
Stephanie has since devoted herself to supporting her parents in their fight for justice. As the only Italian speaker in the family, she has travelled back and forth to Italy to liaise with the Kercher's legal representatives, and has given up her job and moved back to Surrey to be closer to her parents.
Judges for the real-life categories at the awards included Cotton, Britain's Got Talent panellist Alesha Dixon, Professor Green, Katie Piper and Karren Brady from The Apprentice.
Following Britain's triumphant Olympic summer, gold-medalist Jessica Ennis was awarded the title of Ultimate Olympian, while silver-medalist Louis Smith, currently starring in Strictly Come Dancing, was declared 2012's Ultimate Hottie.
Multiple gold medal-winning swimmer and cyclist Sarah Storey was named Ultimate Paralympian.
Vicky McClure, star of This Is England and Line Of Duty, won the title of Ultimate UK TV Actress, while Ultimate Film Actress went to The Hunger Games star Jennifer Lawrence. Fresh Meat's Zawe Ashton won the Ultimate Newcomer award.
Reality TV stars the Kardashian sisters - Kourtney, Kim and Khloe - were named Ultimate Confidence Queens and TV presenter Kelly Osbourne won the Ultimate Style Icon award.
Chart-topping boyband One Direction were named the Ultimate Men of the year, after a hugely successful year in which they became huge in the US.
One Direction's Harry Styles said in a video message: "We cannot believe we've been voted Ultimate Men of the Year because most people still say that we're boys."
As she took to the stage to accept her award, Tulisa Contostavlos said: "For the first time in many nights I'm actually sober! Giving myself applause for that!"
The X Factor judge thanked Cosmopolitan for putting her on the cover of the magazine and apologised for dying her blonde hair back to brunette just before it was published.
She dedicated the award to her PA, "My trusty steed Gareth Varey, who broke his leg last night and he's still here!
"I wouldn't be half the person I am without him, so thank you!"
Nicole Scherzinger was presented with her award by her X Factor finalists.
She said: "It made it so much better to have my little pumpkins up there giving it to me. They're just so sweet, it makes me so happy, God bless 'em."
Stephanie Kercher said she had "a lot of mixed emotions" collecting her award.
I'm very pleased to be here. I dedicated my award to my sister and I hope to keep her memory alive and keep going for her really.
My parents are very proud. It's a nice award for everyone, especially with the fifth anniversary (of Meredith's death) this week.
Olympic gold medal winner Jessica Ennis promised to find a "very special place" for her award.
She confessed getting back to training after the Olympic celebrations had been "really hard".
"Everything ached. After two weeks of training your body remembers what it used to do and kind of bounces back, but it's tough," she added.