An Australian Swiftie has captured the moment Taylor Swift became emotional during one of her Eras Tour concerts in Sydney.

In a video reel shared to Facebook, Swift, 33 can be seen tearing up on stage as she paid tribute to her late grandmother Marjorie Finlay by performing her hit ballad Marjorie at Accor Stadium.

During the performance, hundred of fans turned on their mobile phone torches to pay tribute to the late Marjorie Finlay.

The megastar looked genuinely touched at her fans’ sweet tribute, shaking her head and sighing in amazement.

‘Taylor still in awe that everyone knew to turn on their lights during Marjorie,’ the fan captioned the heartwarming video.

At the time, Swift explained that Marjorie was written with her grandmother in mind, noting that she ‘still visits me sometimes… if only in my dreams.’

The sentimental lyrics recount timeless advice passed on by Finlay, who passed away in 2003, as Swift included the line: ‘Never be so kind you forget to be clever / and never be so clever you forget to be kind.’

Perhaps the most touching element of the recording is the sound of Finlay’s vocals supporting Taylor in the background.

Finlay passed away when Swift was 13 years old, one year before she signed her first record deal.

More than 600,000 people attended the Australian leg of her Eras Tour.

A record-breaking 96,000 fans attended each of her three shows in Melbourne and a further 83,000 Swifties at each of her four shows in Sydney.