'I love you': Dannii Minogue posts a sweet tribute to her sister Kylie as the pop princess celebrates her 48th birthday

They may be far apart but two of Australia’s most famous sisters are just as close as ever.

Dannii Minogue gave a loving tribute to her ‘super sister’ Kylie for her 48th birthday through social media on Saturday, since they won’t be able to celebrate it together.

‘Happy birthday to a super star. Super star of music, super star of strength, and the most super sister ever,’ she wrote on Instagram next to a photo of the two of them.

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Sister love: Dannii Minogue gave a loving tribute to her ¿super sister¿ Kylie for her 48th birthday through social media on Saturday, since they won¿t be able to celebrate it together

Sister love: Dannii Minogue gave a loving tribute to her ‘super sister’ Kylie for her 48th birthday through social media on Saturday, since they won’t be able to celebrate it together

Tribute: ¿Happy birthday to a super star. Super star of music, super star of strength, and the most super sister ever,¿ she wrote on Instagram next to a photo of the two of them

Tribute: ‘Happy birthday to a super star. Super star of music, super star of strength, and the most super sister ever,’ she wrote on Instagram next to a photo of the two of them

‘Congratulations for every achievement: music, film, fashion, charity & personal strength. I love you. Danielle x.’

The accompanying photo was a glamour shot from their December 2014 Harper’s Bazaar Australia photoshoot.

A year later, the sisters performed together at the X Factor grand final – the first time they had shared a stage in 30 years.

Double act: The sisters performed together at the 2015 X Factor grand final ¿ the first time they had shared a stage in 30 years

Double act: The sisters performed together at the 2015 X Factor grand final – the first time they had shared a stage in 30 years

Throwback: The accompanying photo was a glamour shot from their December 2014 Harper¿s Bazaar Australia photoshoot

Throwback: The accompanying photo was a glamour shot from their December 2014 Harper’s Bazaar Australia photoshoot

Kylie and Dannii don’t see as much of each other these days as the older sister is largely based in London with her fiancé British actor Joshua Sasse.

The two announced their engagement in February but Dannii told Daily Mail Australia earlier this month that she doesn't know if she has started planning the wedding yet.

'I don't know anything about it [the wedding],' the 47-year-old said. ‘So I don't know if she's down the line with plans and I'm not privy to them if she's started.’

Close forever: Dannii and Kylie as kids in 1980

Close forever: Dannii and Kylie as kids in 1980

'I don't know anything about it': Dannii told Daily Mail Australia earlier this month that she doesn't know if Kylie has started planning her wedding yet

'I don't know anything about it': Dannii told Daily Mail Australia earlier this month that she doesn't know if Kylie has started planning her wedding yet

Her sister’s warm words will be some comfort to Kylie after she had to cancel her performance at the Bocelli & Zanetti Night in Milan.

Doctors told the songstress to rest her vocal cords after she had been battling a bad cold in the days beforehand.

She did however show up to the event, making up for her lack of singing by wearing a black sheer dress adored with brightly coloured flowers, pale makeup vivid red lipstick clashing with her straw blonde locks. 

Sick on her birthday: Kylie  had to cancel her performance at the Bocelli & Zanetti Night in Milan, but still showed up to the event

Sick on her birthday: Kylie had to cancel her performance at the Bocelli & Zanetti Night in Milan, but still showed up to the event

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