It's got that recent beat from Julian DJ & Dave Sonar and its the one also used by Trance Generators mix of "The End is Important".
The vocals start with a woman saying "back 2, 3, 4, 5, 6, 7, 8 and back..." and so on til eventually a bloke laughs and says "ok" and then says the "back 2, 3, 4, 5, 6, 7, 8 and back..." - the bloke also says "****" instead of "and back" every other loop.