The song the Mary Halford March were dancing to in the semis of BGT?!

Question: The song the Mary Halford March were dancing to in the semis of BGT!?

which song were they dancing to!?
thanksWww@Enter-QA@Com

Answers:

Reet Petite, ( spelt wrong! )Www@Enter-QA@Com

Not the answer to the question but they were awful!Www@Enter-QA@Com

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