Kimberley Walsh is to wear a dress with a 30-metre train for her routine on Saturday night's Strictly Come Dancing.
The gown will trail out as the Girls Aloud star heads to the centre of Wembley Arena on the BBC One show while effects gurus beam projections on to it.
But as she bursts into her samba - to Ricky Martin's Livin' La Vida Loca - it will detach to allow her to move freely in front of the live audience of 6,000 fans. The white trevira train is attached to her dress by velcro allowing her to quickly slip it off.
Last week viewers voted Kimberley into the dance-off despite impressing judges enough to make it to third place in the leaderboard of 10 couples. However, she and Pasha Kovalev survived when Fern Britton was eliminated on Sunday.
She will have her work cut out this weekend when she has to not only perform her own dance but appear with Girls Aloud, just hours after the group appear on Friday night's Children In Need broadcast.
Meanwhile, bookmaker William Hill reported its biggest ever flutter on the dance contest as one punter put a £10,000 stake on gymnast Louis Smith, at a price of 10/11.
The customer would collect £19,090 if the Olympic medallist triumphs in the series next month. As a result of the hefty stake, the firm has slashed his price from 10/11 to 8/11.
"This is the biggest bet we have ever taken on Strictly and we are now desperate to see Louis beaten," said William Hill spokesman Rupert Adams.
"Given that we have also seen a £5,000 bet on Denise Van Outen though we are slightly nervous of her as well."