Ariana Grande and Mac Miller. Picture: Bang Showbiz

American pop star Ariana Grande shared a heartfelt message about her ex-boyfriend Mac Miller on Thanksgiving.

The 25-year-old singer - who has recently been dealing with the tragic death of the rapper in September, and the end of her engagement to comedian Pete Davidson - has shared a touching message in which she confesses that her ex, Mac, is "very missed".

The 'God Is A Woman' singer shared a photo of herself with Mac - who died from an accidental drug overdose - during the annual holiday in 2017 on her Instagram Story and she captioned the image: "You're v missed. (sic)" 

Ariana has previously admitted she has relied on therapy to help her get through the tough times.

Meanwhile, Ariana recently described the last few months as "painful yet beautiful".

The chart-topping star thanked her fans for helping to make 2018 so "interesting", although she also conceded it'd been "challenging".