Britain's Got Talent's fourth semi final on Thursday saw Ghanaian dancers Abigail and Afronita and the Northants Sings Out community make through to the final.
Another eight acts took to London's Eventim Apollo stage to battle it out for a chance to win £250,000 and a spot on the Royal Variety Show bill.
After earning a standing ovation and roars of enthusiasm from the audience for their dance to Brighter Days by Sigala, dance teacher Abigail, 20, and her protege Abigail, seven, sailed through to the final with the highest number of public votes.
It was then between choir Northants Sings Out and dance troupe Phoenix Boys to clinch the second spot.
The judges went to a deadlock with two votes for each act, leaving it down to the public vote - which revealed that the choir was the second most popular with fans and would be competing on Sunday.
Britain's Got Talent's fourth semi final on Thursday saw Ghanaian dancers Abigail and Afronita and the Northants Sings Out community make through to the final
Another eight acts took to the Eventim Apollo stage to battle it out for a chance to win £250,000 and a spot on the Royal Variety Show bill
When Afronita and Abigail were announced as the winner's of the second semi-final, the teacher burst into teach and picked up her young student for an adorable hug.
Afronita and Abigail performed an electrifying Azonto routine, a dance and music genre from Ghana.
The roars from the Eventim Apollo audience were so loud the judges Simon Cowell, Amanda Holden, Alesha Dixon and Bruno Tonioli could barely hear themselves speak to give their feedback.
Simon also revealed that he believed the pair could be in with a chance of winning, saying he had 'changed his mind' as to who he thought would be victorious.
'I think what is happening behind me [the deafening cheers] is more important than what I say,' Simon said.
'When you've got it, you've got it. I thought last night "Yeah I've got a feeling I know who's going to win the show this year," and I've just changed my mind.'
Afronita met young Abigail, a deaf dancer who went on to win a huge talent competition in Ghana, when she started her own studio.
The pair's performance set the venue on fire, with deafening cheers from the audience.
After earning a standing ovation and roars of enthusiasm from the audience for their dance to Brighter Days by Sigala, dance teacher Abigail, 20, and her protege Abigail, seven, sailed through to the final with the highest number of public votes
When Afronita and Abigail were announced as the winner's of the second semi-final, the teacher burst into teach and picked up her young student for an adorable hug
The roars from the Eventim Apollo audience were so loud the judges Simon Cowell, Amanda Holden, Alesha Dixon and Bruno Tonioli could barely hear themselves speak to give their feedback
Simon also revealed that he believed the pair could be in with a chance of winning, saying he had 'changed his mind' as to who he thought would be victorious
Afronita met young Abigail, a deaf dancer who went on to win a huge talent competition in Ghana, when she started her own studio
Of their performance, Alesha said: 'Sometimes there aren't enough words to articulate how an act makes you feel because the audience says it for us.
'So much natural sauce, so much flavour, so much personality, so much joy that you just brought to the Britain's Got Talent stage. I would love to see you in the final.'
The next act through to the final was Northants Sings Out - who won over the crowd and judges with their rendition of 90s classic Livin' Joy's Dreamer.
One judge sure to be delighted with the choir making it through is Amanda, who said in her feedback earlier in the night: 'It is my dream for a choir to get through and be in the final of this show.
'I really hope people get behind you because you deserve it.'
Alesha added: 'It's very nostalgic and everyone can get involved. There's nothing stereotypical about this choir and I think people have an idea about what a choir should be.
'When I feel your energy and your vibe I feel like all of us should be part of it and that's what makes you really special.'
The next act through to the final was Northants Sings Out - who won over the crowd and judges with their rendition of 90s classic Livin' Joy's Dreamer
One judge sure to be delighted with the choir making it through is Amanda, who said in her feedback earlier in the night: 'It is my dream for a choir to get through and be in the final of this show'
Afronita and Northants Sings Out will join opera singer Innocent Masuku, martial arts group Sslaubi Performance Troupe,Double Dutch group Haribow, magician Jack Rhodes, singer Sydnie Christmas and impressionist Mike Woodhams
Alesha added: 'It's very nostalgic and everyone can get involved. There's nothing stereotypical about this choir and I think people have an idea about what a choir should be'
Afronita and Northants Sings Out will join opera singer Innocent Masuku, martial arts group Sslaubi Performance Troupe,Double Dutch group Haribow, magician Jack Rhodes, singer Sydnie Christmas and impressionist Mike Woodhams.
Wednesday night sawSydnie Christmasreceive the highest number of public votes after sheastounded the audience and judges with her version of Frank Sinatra's My Way.
While impressionist Mike Woodhams and dancer LeightonJay were left in second and third place, the judges took it to a split decision when asked which act to send through to the final.
Bruno Tonioli opted to save LeightonJay, while Alesha Dixon went for Mike to even things out.
Amanda Holden then also voted for the Scottish contemporary dancer, leaving Simon Cowellto take it to deadlock as he chose Mike.
Heading back to the public vote to determine who would go through, it was Mike who gained the most votes, leaving LeightonJay heading home.
