Nicole Scherzinger believes a ''great hat'' is essential for Christmas.

The 38-year-old singer - who was a former member of the girl group The Pussycat Dolls alongside Ashley Roberts, Kimberley Wyatt, Jessica Sutta and Melody Thornton - has admitted she ''loves'' to wear a headpiece over the festive season.

Speaking to the metro newspaper about her wardrobe staples over the winter months, the raven-haired beauty said: ''It's Christmas, so get a great hat. I love a good hat.''

And 'The X Factor' judge - who mentored this year's winner Matt Terry - believes you don't need to wear something skimpy and revealing to feel ''sexy''.

She explained: ''You don't have to wear a short skirt to be sexy. You can be sexy in anything that makes you feel comfortable. That could be a Christmas jumper and some leather leggings.''

Nicole - who provides the voice to Sina Waialiki in the Disney movie 'Moana' - has admitted she enjoys applying a ''fun'' red lipstick or berry shade to her plumped pout to ''edge up'' her make-up and outfit.

Speaking about her beauty must-haves, she said: ''I love a fun red lip for Christmas. Or even a deep berry of you want to edge it up.''

And the musician - who is currently dating the 25-year-old sportsman Grigor Dimitrov - has revealed she relies on ''lots of illuminator'' to give her a glowing complexion of the cold season, with a touch of bronzing powder and a dab of a ''warm blusher'' are also her essential products.

She continued: ''Then, lots of illuminator on the cheekbones. I use Charlotte Tilbury's Wonder Glow Face Primer.

''Add some bronzing powder, a warm blusher, some mascara and you're ready to go.''