Alisha Weir is the youngest of three siblings, she has two elder sisters Katie and Emma-Jane Weir. 

Her elder sisters share her talent and passion for music and acting according to Daily Mail. Her sister Katie is also an Irish singer currently based in London according to her Instagram account. However, she has much more to offer. 

According to Daily Mail, Katie attended Urdang, a performing arts school based in Islington, London. She has also performed with Dublin Panto in their several productions, Dublin Panto is a small ensemble with a big heart according to their website. A panto is a form of theater performance where the audience is expected to engage in the performance by singing some part of the performance and songs. 

Similarly, Katie has shared the television screen with her younger sister Alisha. The two siblings appeared on Donncha's Two Talented on Irish television back in 2018. The show features talented children teaching adults. 

Alisha's other elder sister Emma-Jane Weir has not appeared in public much. She has not revealed anything about her personal life on the internet and she is also not found using social media publicly.