Christine has let slip his dark secret ahead of the new series, which starts on Sunday 6 January.
She said: "He loves a sing song backstage. He's a particularly big One Direction fan!"
Christine, who landed her job on DOI last year, says her favourite ever moment was stepping in front of the camera for the first time.
"The first moment I stepped out on stage with Philip on our first show was my favourite," she added.
"I couldn't believe I was now a part of this brilliant show that I've watched for years, and all I could see was fear from our celebs!"
Scroll through our gallery below to see the celebs taking part in DOI 2013!
Who are you looking forward to seeing this year on DOI? Tell us below, as the best comment from across the website each week wins £50.
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