Kylie and Dannii Minogue Shine at Premiere!

The London premiere of 's new documentary became a family reunion on Monday when the pop star was joined by her little sister Dannii on the red carpet. 

The Australian songstress, 57, was spotted dancing and hugging her lookalike sibling, 54, as they posed for photos against the media wall. 

Kylie stunned in a Grecian inspired gown that featured dramatic draping and an open bodice that revealed her white bralette. 

She accessorised her look with a diamond torque necklace and a huge diamond ring. 

For her makeup, the Spinning Around hitmaker sported dramatic dark eye shadow, blush and lipstick, while her blonde hair was worn down in neatly-styled waves. 

Dannii meanwhile sported plunging, sequined peplum top in blue, black slacks and pointy-toe pumps. 

She wore heavy makeup and completed her look with a dramatic side-part hairstyle. 

The sisters, who have always been close, even posed together on Instagram for photos as they got ready together.  

Kylie's outfit was her second of the night - she earlier sported a figure-hugging black dress with a white lace trim and racy thigh-high split. 

Elsewhere, Kylie was joined on the red carpet by ex-boyfriend and former Neighbours co-star Jason Donovan.

The pair played onscreen lovers Charlene and Scott Robinson in the Aussie soap, before going on to date in real life for four years before splitting in 1989. 

Jason caught the eye in a white blazer and bright blue trousers, completing the look with a red flower in his button hole.

Kylie's three-part documentary lands on Netflix on 20 May, and will delve into the singer's childhood and her time on Neigbours. 

It will also explore her experience with early-stage breast cancer in 2005, as well as her relationships with Jason Donovan and the late INXS frontman Michael Hutchence.