I really liked her performance mashup of two of her new songs, Venus and Do What U Want on last week's X Factor UK.
She wore Flesh coloured knickers and a flesh coloured bra with shells over her breasts then for Do What U Want, took her wig off and the shells off. Apparently it was far too raunchy for family viewers but I completely disagree.
Here's a picture for those who haven't seen what she wore by the end of the performance;
(Possibly NSFW, but it isn't all that to be honest)