An East Renfrewshire schoolgirl is to sing a duet with a pop sensation tonight live on the Children in Need Appeal Show.

Erin will be performing Hallelujah on TV to millions of viewers across the UK with Alexandra Burke, who took her own version of the song to number one.

Not only that but their performance will be backed by a full orchestra, the BBC Philharmonic.

Barrhead News: Alexandra BurkeAlexandra Burke (Image: PA)

The 15-year-old is a young carer for her mum Sinead, who was diagnosed with a debilitating form of multiple sclerosis in 2016.

She is one of four inspirational youths who are part of Children In Need’s Challenge Squad and have been set a personal challenge.

Since the squad was announced several weeks ago, hundreds of thousands of pounds have been donated by those supporting the four.

Barrhead News: Erin with other members of the Challenge SquadErin with other members of the Challenge Squad (Image: BBC)

Erin’s own personal challenge of singing at the appeal show was revealed on BBC’s The One Show last week.

Singing is her “happy place” and the teen has been working with vocal coach to the stars, Yvie Burnett, ahead of the big night, as well as rehearsing with Alexandra.

Viewers of The One Show got a sneak peak of their performance on the programme on Wednesday night.

They then joined presenters Alex Jones and Jermaine Jenas in the studio, sitting on the sofa along with singer Emeli Sandé who was able to offer insight from her own experience of performing on the appeal show.

Barrhead News: One Show presenters Alex Jones and Jermaine JenasOne Show presenters Alex Jones and Jermaine Jenas (Image: Sourced)

During the programme, good luck messages praising the teen were also played from Robbie Williams, the touring cast of Hamilton, Erin’s family, including her proud mum and dad, and her teachers.

Alexandra also praised the schoolgirl for doing so well since they first met and the “outstanding progress” she has made.

Touchingly, the teen and 35-year-old singer, songwriter and actress have quickly found an affinity with each other as the latter was also young carer for her mum, along with her brothers and sisters.

Neither Erin or her family had considered her a young carer until they were introduced to East Renfrewshire Young Carers (ERYC), a project supported by Children in Need, by Erin’s pastoral care teacher.

In footage shown on The One Show, the teen praised ERYC for providing a space to hang out with other young people in similar situations.

She also had the chance a few weeks ago to share her story on stage before S Club played to 14,000 people at the OVO Hydro in Glasgow.

Barrhead News: ErinErin (Image: BBC)

She has described the performance live on TV as “exciting and scary” and admits she is still trying to get her head around the fact she is “actually doing this”.

Speaking a few weeks ago, she: “ “I can’t wait to represent the ERYC in my challenge and I hope I will make my mum, dad and carers everywhere across the UK proud.”

“I want to use this opportunity to spread the message to all carers around the UK that they are not alone and that there is support available to them,” added the teen.

“It took me a long time to recognise that being a young carer can be tough, but that reaching out for help is essential.”

The appeal show is on tonight (November 17) at 7pm on BBC One and BBC iPlayer.