Whose, I hear you ask. Well, those of the legendary snooker player Willie Thorne, who left behind his dancing slacks (complete with extended waistband) as he waltzed off into the sunset after being voted off the show in series five.
And the BBC, not wanting to let a good pair of trousers go to waste, passed them on to the lucky agency finalists. But who in media land had the physique to do them justice?
Step up Chris Amor, the head of press at OMD UK, who has the dubious honour of wearing Willie's trousers in the final. Let's hope, for Chris' sake, they've been thoroughly dry-cleaned.
Check out the back-stage gossip at www.bbcmagazinesadvertising.com/strictly.