Michael Jackson impersonator Suleman Mirza and sidekick Madhu Singh won the public vote in the first heat of the ITV1 show last night.
They will be joined by 16-year-old student Kate Nicholas and her dancing collie Gin, who were the favourite act of judges Simon Cowell, Piers Morgan and Amanda Holden.
Signature, who combined Jackson's lyrics and dance moves with traditional Indian dancing, impressed the panel with their rendition of 'Thriller'.
Cowell said: "I had one issue which was could you come back here and do it better? The answer is yes, you did it. It was fantastic. That was one of the best acts because you have something so important, originality. Guys - three yeses."
Meanwhile, Kate and Gin earned praise for their performance of Scissor Sisters' hit 'I Don't Feel Like Dancing'.
Morgan said: "Simon said that’s the most talented dog in Britain. I don’t agree, I think that is the most talented dog in the world. He reminds me of Amanda, he just does everything you tell it to do."
Singer Dean Wilson, belly dancer Sophie Mei and dance group Boogie Wonderland missed out on a place in the final, along with keyboard player Michael Machell, transvestite Tracy Lee Collins and fire juggler Phil Blackmore.
The winners will scoop £100,000 prize money and a slot at this year’s Royal Variety Performance.
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