Eight-time Grammy winner warms fans' hearts with rare childhood photo... can YOU guess who she is?

A world-famous singer with eight Grammy Awards to her name shared a heartwarming photo of herself as a child.

In the throwback snap, she was standing in front of a poster of country legend Alan Jackson, one of the genre's reigning icons of the 1990s.

Jackson, 67, held his farewell concert in Nashville this past weekend amid his now 15-year battle with the genetic disorder Charcot-Marie-Tooth disease.

A fleet of top names from the country music industry paraded across the stage at the show in order to tip their hats to a lion of their business.

One of them was the now 43-year-old songstress who posted the childhood picture of her standing in front of the Alan Jackson poster all those years ago.

Can you guess who she is?

She is none other than Carrie Underwood, who joined a lineup that included Miranda Lambert, Luke Bryan, Lainey Wilson and LeeAnn Womack at Jackson's final show.

'Life has a way of coming full circle,' Underwood wrote in the caption of the Instagram post where she shared the childhood flashback to her with the poster.

'The very first concert I ever attended was @officialalanjackson back in 1994, and it changed my life,' wrote the American Idol judge. 

'This little girl posing in front of his poster could have never imagined she’d one day be standing on stage at his farewell concert, celebrating this legendary artist whose music has been such a big part of her life,' she went on.

'What an incredible and unforgettable night. I soaked up every moment...and we all sang along to every word! Thank you, Alan, for inspiring generations of artists and fans. It was truly an honor to be part of your special night.'

The Daily Mail has contacted Underwood's representative for further comment. 

Her post included a video of her standing in the wings at Jackson's final show, singing along while he delivered a rendition of his 1996 song Little Bitty.

Underwood would have been either 10 or 11 when she attended the Alan Jackson concert in 1994, 11 years before she competed on American Idol, which served as the launchpad to her own international superstardom.

Jackson's farewell show at the outdoor Nissan Stadium last Saturday was plunged into chaos by a lightning storm that forced fans to flee their seats and seek shelter. 

'At this time, lightning is approaching Nissan Stadium and the event has entered a weather delay,' read a statement released by the venue on X. 'Please proceed to covered areas of the concourses or other interior areas at this time.'

Ultimately, as conditions improved, the warning was lifted and fans were able to return to their seats to see Jackson, Underwood and the rest onstage.

Before Jackson himself appeared in front of the crowd, Underwood treated them to a rendition of his classic 1997 song Everything I Love. 

The concert featured a video message from Taylor Swift, who is said to be marrying NFL star Travis Kelce this weekend at New York's Madison Square Garden.

Her virtual appearance at the Nissan Stadium was greeted with a mixture of boos and cheers, as she thanked Jackson 'for your decades of unbelievable songwriting and your performances, and the ways that you've given so much to us, the fans.'

Jackson announced the date and location of his final show last October amid his ongoing struggle with Charcot-Marie-Tooth disease, which he had been diagnosed with in 2011, a development he only made public a decade later.

In his statement, he said he could not 'think of a better place to put on a big show and give the fans a finale than in' Nashville, famed as the capital of country music.

'We just felt like we had to end it all where it all started for me, and that’s in Nashville - Music City - where country music lives,' he told People. 

Charcot-Marie-Tooth disease is a collection of inherited syndromes that effect the nervous system and can result in mobility issues.