Pop star Kylie Minogue has replied to the heartbreaking video of two twin sisters singing her 'Dancing' hit to their mother just the day before they lost her to brain tumour.

The video, posted on Twitter by the girls' dad Lee Cripps on Tuesday, shows twins Lauren and Sophie Cripps, eight, wearing Harry Potter onesies as they sing out the lyrics, "When you come knocking, I'll be at your door / I don't even wanna stop / I'm gonna give it all I've got'.

One of the girls is heard innocently saying: "Sweaty hands."

Lee, 40 and from Thatcham, Berkshire, captioned the video, which has now been seen more than 51,000 times, saying: "Our girls singing to their mummy, the day before she died.

(Image: REX/Shutterstock)

(Image: Facebook)

(Image: Facebook)

"Alex died on 10th Jan 2019. Really want kylieminogue to see this, to see how much her music means to us as a family and I would love for our girls to meet her. Please RT in the hope it reaches her."

Kylie responded to the heart-wrenching post, which was also shared on his personal Facebook blog Life Without Mummy , on the very same day saying: "Lee, thank you for sharing this tender moment of your girls singing to Alex. I’m so touched and so very sorry for your loss. Sending you and your girls lots of love."

(Image: Twitter/@CocoPops)

(Image: Twitter/@kylieminogue)

The bereaved dad replied to the singer's tweet to thank her for the "lovely reply".

He went on: "I showed the girls this morning, their first question was “wow, do you know Kylie”. I kindly told them that no, but I’d like to!

(Image: Facebook)

(Image: Facebook)

"Explained the power of twitter and some of the other lovely replies we’ve had."

Asked about the moment he saw his two daughters singing their final song to their bed-ridden mother, Lee told Mirror Online on Wednesday that he "felt proud and sad at the same time.

"Proud they were wanting to share Mummy's last days, she passed away less than 24 hours later, but sad that eight-year-old girls were losing their mummy."

(Image: Facebook)

More than £20,000 has been raised in Alex's honour for the Brain Tumour Charity since her diagnosis in 2014.

If you'd like to donate, you can click here .