Kylie and Dannii Minogue were reunited on stage for their first TV duet in 30 years for the Grand Final of the Australian X Factor .
The famous sisters performed a duet of 100 Degrees, a song from Kylie's upcoming Christmas album, for the very first time.
Watch the performance below:
The ladies wore matching mirrored dresses, with Kylie in pink and Dannii wearing the blue version. Disco vibes all round.
Kylie Christmas is out now.
