Mel B has been forced out of tonight's X-Factor final due to ill health.

The ex-Spice Girl has taken the night off and a former X-Factor judge has stepped in to Mel B's seat for the final.

It's (drum-roll)...

Tulisa Contostavlos! Yes, after the rough year she's had, Tulisa is said to be delighted to be replacing Mel B on the night and hopes she gets better soon.

The former N-Dubz member will be mentoring Andrea Faustini in the finals, although the bookies tip Fleur as the favourite to win the series.

X-Factor starts tonight at 8:30 on UTV and TV3.