(Cover) - EN Showbiz - Dannii Minogue has revealed her sister Kylies tour crew used to worry about her watching rehearsals because she was so critical.

Dannii has enjoyed success as an actress, singer, fashion designer and judge on television talent show The X Factor. The 39-year-old star admits she is never afraid to voice her opinions and her older sister relies on her for feedback about her lavish world tours.

Kylie often invites Dannii to come and watch rehearsals for her shows and always appreciates it when she tells her exactly what she thinks although the crew sometimes feel apprehensive about hearing her honest reactions.

Id always go down to her shows and watch the run-through. Id sit there afterwards and give her a list of all the things that had to change. I was her eyes in the audience, Dannii explained in an interview with the British edition of Marie Claire. So after a few tours her crew was like, Danniis coming down today we have to get our sh*t together!

I have never been scared to say what I think and its the same with my contestants on The X Factor now.

Dannii admits it has been difficult for her to carve out a career because so many people draw comparisons between her and Kylie. Just like her sister, Dannii shot to fame on an Australian television show before launching a music career and moving to England.

Even though the siblings dont feel a sense of rivalry with each other, Dannii found it a struggle to be known in her own right when she first left her home country.

Can you imagine what it was like to be Kylies sister? Dannii explained. Journalists would try asking a couple of questions before embarking on another barrage about Kylie. I would be like, If you want to interview her, then heres her number. (C) Cover Media