CHIC will perform live tonight on the X-Factor TV-show on ITV1 in the UK at 8PM (GMT)
If you are a non-UK resident I think you will be able to see the show live and for free using the below link.
UPDATED and EDITED AT 6:50PM (CET): Show time is at 8PM!!, NOT, as I previously posted here 9PM
Watch CHIC live on X-Factor UK GO!