So in their careers, both sisters have covered very famous Olivia Newton John songs.

 

Kylie tackled Physical, making it a sex charged bop

 

 

Dannii took a more risky option and turned the disco tune Xanadu into a slow burner

 

 

she also did a horribly out of tune uptempo version once but you can find that on your own

 

So which one do people prefer? Did they do a good job?

Physical, but only slightly as im not a particular fan of either songs.