Kylie Minogue is suffering sleepless nights over the stress of her role as a judge on British Tv talent show The Voice.

The Spinning Around hitmaker replaced U.K. pop star Jessie J in the 2014 series of the singing contest after allegedly turning down an offer to join the first series of the show in 2012.

The Australian singer reveals the pressure of decision making has left her exhausted and doubting whether she has made the right choice.

She tells Britain's Daily Star Sunday, "It's really hard to switch off when you leave the studio. You become so invested in the acts. My sleep gets interrupted because you know you have to make decisions the next day and you don't want to.

"Some parts of being a coach are great. But then there are sticky moments when it doesn't matter what decision you make, it isn't going to be any fun. And then you think about it later on and wonder if you made the right decision."