Jay, best known for being one fifth of boy band The Wanted, braced the awards ceremony with Aliona on Monday evening (28 September).
The 'Glad You Came' singer looked smart in a printed suit jacket, while Aliona showed off her figure in a tie-dye bodycon mini dress.
The pair held hands on the red carpet and were laughing together while photographers snapped away.
Jay showed off his dance moves on Strictly's first show over the weekend, dancing the Cha Cha to 'Reach Out, I'll Be There' by Human Nature.
Jay and Aliona were one of four couples who came joint third on the leaderboard with 27 points. They were joint third with Georgia May Foote and Giovanni Pernice, Kellie Bright and Kevin Cliton, and Anita Rani and Gleb Savchenko.
The winner of week one was Peter Andre, who topped the leaderboard with 30 points.
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This year's Strictly line-up:
Copyright: BBC/Ray Burmiston