The former X Factor co-stars and firm friends were seen sharing hugs and chatter ahead of the exclusive bash at One Mayfair in London on Wednesday night (3 December).
Louis and Tulisa became pals while serving together on the X Factor judging panel for two years and, following Tulisa's departure, remained thick as thieves.
Tulisa flew to Bermuda earlier this year to help Louis pick his contestants for this year's X Factor live shows, while Louis has made no secret of how much he'd love to work with T again.
"I loved having Tulisa back for judges' houses," he told Daily Star earlier this year. "I loved having her back and I absolutely love her. I'm really good friends with her. I adore her.
"She's a great judge, she's a great mentor and she was really honest in Bermuda, she really was. She helped me pick my top three well."
Last night, the pair were seen chatting, hugging and posing for pictures together before the awards were handed out.
Tulisa looked gorgeous in a monochrome dress that showed her a-mazing legs and golden glow, while keeping her make-up simple and hair tied back in a sleek updo.
It was a night all about X Factor for the pair.
Louis made his first ever appearance at the awards to hand the 'Ultimate TV Personality' title to X Factor judge Mel B, while Tulisa was there to honour ex-X Factor contestant Ella Henderson with the 'Ultimate UK Music Artist' gong.
Oh, and if that wasn't enough X Factor action for you, former winners Little Mix were there to present the 'Ultimate Woman of Courage' award to Kirsty Howard, while Xtra Factor's Sarah-Jane Crawford and former Xtra Factor host Caroline Flack also made appearances on stage.
And current contestants Fleur East, Lauren Platt and Andrea Faustini were in the audience.
The Awards in full:
Ultimate Editor's Choice - Davina McCall
Ultimate #FabulousFriends in association with Baileys - The Saturdays
Ultimate TV Personality - Mel B
Ultimate Sports Star - Jo Pavey
Ultimate Style Icon - Abbey Clancy
Ultimate UK Music Artist – Ella Henderson
Ultimate Icon – Dame Vivienne Westwood
Ultimate Writer – Lena Dunham
Ultimate Men of the Year – McBusted
Ultimate International Man of the Year – Samuel L Jackson
Ultimate Breakthrough Actress – Natalie Dormer
Ultimate International Music Star - Taylor Swift
Ultimate Funny Woman – Morgana Robinson
Ultimate Inspiration – Ellen Page
Real Life Winners:
Ultimate Trailblazer- Paris Lees
Ultimate Woman of Courage - Kirsty Howard
Ultimate Game Changer – Dr Neha Pathak
Ultimate Body Confidence Queen - Bethany Townsend
Ultimate Love Story - Tom & Ellen Nabarro
Ultimate Campaigner - Temi Mwale
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