Paddy Jones competed in front of the judges during the series premiere of the competition show, performing a salsa dance.
Jones began doing salsa several years ago, after a move to Spain from her home in Stourbridge, West Midlands.
In December 2009, Jones won 10,000 euros (£9,055) on Tu Si Que Vales (You Are Worth It) with her acrobatic salsa dancing.
Jones is now competing for the grand prize on Britain's Got Talent.
A retired shop owner, Jones and her dance partner Nico Espinosa impressed the judges with their lively dance act, despite initially being met with skepticism.
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"I had been a dancer from the age of 2 & ½. I gave it up to get married," she told David Walliams.
The contestant continued: "I went to live in Spain with my husband, and unfortunately after 18 months, he died. And for something to do, I went to Nicko's dance academy to learn something totally different. And this is the result!"
Simon Cowell apologised for pre-judging Jones and her partner Espinosa prior to their performance, while Amanda Holden backed them as her pick to win the series.
Britain's Got Talent airs on ITV.