The Scots will be joined by a host of other artists, including All Saints and Mel C...
Hosted by Jamie Theakston, the hour-long special of the UK chart programme will come from the 11,000 capacity Sheffield Arena and go out live on the BBC1 channel.
Also playing at the show will be Gabrielle, Chicane featuring Bryan Adams, Destiny’s Child, S Club 7 and Fragma.
The show will start at 3pm with the live broadcast running from 4.30 to 5.30pm. It is the first time in the show’s 36-year history that it will have gone on air live.
There will also be two chart rundowns on the day – one of the official UK Top 40, as will be revealed the previous day, and a breakdown of the year’s biggest sellers.
Tickets, priced #10, are available from the information line on 0870 333 1153 or the Sheffield Arena Box Office on 0114 256 5656.