Nicole Scherzinger reportedly had a "great time" celebrating the New Year with ex-boyfriend Lewis Hamilton over the weekend.

The pair split up in October following an on-and-off four-year relationship, with both parties said to be devastated about the break-up.

Shortly afterwards a picture of Nicole and Lewis looking awkward as they hugged in Los Angeles was made public, and rumours of a reconciliation have been circulating since.

It has now been revealed that the songstress and the Formula One driver spent New Year together in Vail, Colorado, and it was "definitely not" as friends.

Nicole and Lewis "looked to be having a great time dancing and ringing in the New Year together" a source told PerezHilton.com.

Since the split late last year Nicole has been linked to several other men, including Steve Jones, Drake and Derek Hough.

However, both Nicole and Lewis have confessed their on-going feelings for each other in the wake of the break-up.

"I still love him," Nicole previously admitted. "It's all very recent. And it's hard for me to talk about it. But we are good friends. We're great friends."

Lewis also spoke emotionally about his former girlfriend.

"It's very early days and we still have very strong feelings for one another. I still love her very much," he explained. "So, who knows? Maybe we will be together in the future."