Hilary Duff attended a Halloween party with her estranged husband Mike Comrie on Friday night.

Hilary, who has remained close with the hunk since their split earlier this year, arrived at the bash wearing a white fairy costume, with her face covered in glitter.

Mike, who offered his arm to the beauty as they walked into the venue, opted for a simple costume as he arrived wearing a black and white tuxedo.

However, speculation that the pair have reunited again were fuelled even more when they were spotted holding hands as they walked past the paparazzi.

Meanwhile, the couple announced they'd amicably separated in January following three years of marriage, but Hilary insists she hasn't filed for divorce from the former professional ice hockey player yet as they're still working on trying to repair their romance.

She said last month: "We've uncoupled, for now. I mean, if there wasn't a chance for getting back [together], I think we would've filed for divorce.

"We're not putting any... I talk about this so much, I really don't want to talk about it anymore.

"But we are like... I just talked to him this morning! We really care a lot about each other."