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Last year's winners Chris and Ola trained for a total of 340 hours – that's over two weeks worth of solid training!

In previous series, the dancers in the final averaged 15.3 hours of dance-practice a week, burning around 255 calories per hour. That's 3,900 calories a week, which equates to...

– almost 18 servings of spaghetti for Vincent or Flavia.
– 42 glasses of champagne, or 98 spoonfuls of caviar for Craig or Bruno.
– 177 squares of chocolate for Alesha!

The dance floor for the new series is 9m x 14m – that's 126 square metres of space, so our celebrities won't need to hold back!

The set for the new series uses three glitter-balls and six brand-new spherical chandeliers.

The set also uses 300m of red velvet drapes, and 1250m of LED lighting. That enough LED lighting to run the length of more than 11 football pitches!

Twelve sets of perfect scores have been awarded throughout the show's history, three of which were earned by Rachel Stevens with dance partner Vincent Simone in Series Six.

The lowest score ever given on Strictly was just eight points, which went to Quentin Wilson and Hazel Newbury for their Cha-cha-cha in Series Two.

Len Goodman was the most generous judge in the last series, giving an average score of 7.4. Alesha gave an average of 7.2, whilst Bruno gave 7.0. Unsurprisingly, Craig was the harshest judge – giving an average of just 6.3.

Craig is also the only judge ever to have awarded a score of 1.

A word of advice to this year's stars: don't peak too soon! None of the series winners were the judges' favourites in the first week. Last year's winners Chris and Ola scored 23 with their quickstep in their first week – but pulled themselves up to full marks by the time they danced their charleston in the final.