Arlene Phillips is used to judging people's dancing
Dance judge Arlene Phillips is set to take to the dancefloor at the National Television Awards later.
The veteran choreographer, 66, will perform a routine to Christina Aguilera's hit Ain't No Other Man.
Phillips, who sits on the judging panel of the BBC Saturday night series So You Think You Can Dance will be accompanied by 10 show finalists.
The ceremony at London's O2 arena is being hosted by Dermot O'Leary and will be broadcast live on ITV1.
X Factor twins John and Edward Grimes - also known and Jedward - are also on the bill, as is the show's winner, Joe McElderry.
Ant and Dec lead the nominations with three nods, including the prize for best TV presenters of the year - a gong they they have won eight times in a row.
Two of their shows, I'm a Celebrity and Saturday Night Takeaway, are up in the entertainment programme category.
Paul O'Grady, stand-up comic Michael McIntyre and Holly Willoughby have been nominated alongside Ant and Dec on the presenter shortlist.
The awards are decided by public phone vote.