Scherzinger and Hamilton back on?

Nicole Scherzinger and Lewis Hamilton have sparked rumours that they may be back together after both taking a New Year holiday in Aspen, Colorado.

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Lewis Hamilton and Nicole Scherzinger were both spotted on the slopes

Nicole Scherzinger and Lewis Hamilton have sparked rumours that they may be back together after both taking a New Year holiday in Aspen, Colorado.

The X Factor judge joined her F1 racing driver ex and his family at the ski resort where they had spent Christmas, in time to ring in 2014 with them, according to The Sun.

On New Year's Eve they were also said to have met up with Alicia Keys and her husband Swizz Beatz for a party at the ski resort.

Nicole and Lewis both posted photos from their trip on Instagram, showing their snaps from a New Year's Day sunset trip on matching snowmobiles.

Lewis captioned his photo: "Great way to enter the year... snowmobiling with God's view. Truly am blessed to have a great family with me. #onelove."

Nicole also said she had had a great New Year with "friends and loved ones" and captioned her photo from the mountains: "Floating so high today, I was so close to the sun, felt like I could reach out & grab it!"

During filming for The X Factor in 2013, Nicole admitted: "It's been a tough year. On the personal side it has been a hard year for me. I am not a robot and I wear my heart on my sleeve."