For the first time in their almost three decades in the public eye, the Minogue sisters are set to go head-to- head on Australian prime-time TV.
For Kylie Minogue will be against her little sister Dannii when reality singing juggernauts The Voice and The X Factor cross paths for the first time next Monday.
Seven's The X Factor will return at 6.30pm on Sunday and then go head-to-head against Nine's The Voice the following night when both talent shows screen at 7.30pm on their respective networks.
While The Voice - which features coaches Kylie, Joel Madden, Ricky Martin and will.i.am - has experienced a ratings decline nationally this year, The X Factor had its biggest season to date last year when more than 3 million viewers nationally tuned in to see Dami Im crowned the winner.
All four of last year's X Factor judges - Dannii, Redfoo, Natalie Bassingthwaighte and Ronan Keating - are set to return.
Coincidentally, Kylie was Dannii's mentor on last year's X Factor and helped her sister choose Im for the live finals.
At the same stage, fellow new Voice coach will.i.am was Redfoo's mentor on the smash-hit show, which has unearthed stars such as Reece Mastin, Taylor Henderson and Perth's Samantha Jade and Johnny Ruffo.
But regardless of the ratings battle that is set to ensue, Dannii told AAA there was no sibling rivalry between the sisters, despite the media's constant fascination with trying to create a divide between them.
"Whatever the programming schedule is, it is what it is. We are both loving the shows that we are doing," Dannii said.
"I know she is loving being back in Australia.
"Because we both shoot on the Fox Studios lot, all we are concerned about is the recording dates and if we get to see each other at work. Like 'Do I get to run over to yours, or do you get to run over to mine?'
"Whatever goes out to air, we don't even think about that. We know that people will pick a rivalry thing but that is not how we are - we just get on with it as sisters."