Say what you like about Katherine Jenkins, but she's definitely got the sex factor. The Welsh warbler was out in London on Tuesday night looking uber-glam as usual - and proved two things: that the bodycon dress isn't over, and that an LBD can be super-sexy.
The pair hit it off in 2013 when Katherine appeared on the show, in which Cheryl is a professional dancer.
Kath made it all the way to the final, losing the mirrorball trophy to winner Donald Driver.
But she's kept the slim physique she got while doing the programme, and showed it off to full effect in her sleek black number. Lashings of (well-applied) fake tan, her signature curls, and red lips finished the glamazon look.
More Katherine? Coming up: