United Kingdom, Aug. 13 -- Mariah Carey says being "freezing" made the making of her iconic All I Want for Christmas video brutal.

The 56-year-old singer reflected on filming the promo for her 1994 festive hit in a new video for Allure, revealing that behind the festive glamour, the shoot was far from effortless.

She said: "I was so freezing (in my Santa suit.)

"It was definitely not chic and effortless."

Despite her discomfort, Mariah revealed she has a fond attachment to the outfit.

She added: "Someone asked me, 'Do you still have that one?' and I'm like, 'yeah, I use the same one every year'."

Mariah's festive favourite is part of her 1994 Merry Christmas album and has become a global holiday staple, earning three Guinness World ...