Dannii Minogue has admitted that she finds acting as a judge in ITV talent show, The X Factor, challenging and pressurised.

Dannii is said to have signed up for this years series, her third year as a judge, but says that the show is not all plain sailing.

“It has been really full on. It was a challenge for me because the first year I had the young boys, and last year the older category,” she told Heat.

“We are the judges and we fiercely want our acts to win. When we film auditions, we start in June and go through to July. It’s 12 hours a day. After that you need some brain space.

“Then the live shows are so pressurised. It’s three months and you’re working seven days a week.”

Monogue added that she was disappointed that Sharon Osbourne is still talking about their much-publicised feud.

“I haven’t seen her for two years. I would have thought she would have moved on.”