Cheap frills! Sia sports extravagant tiered ruffle dress and conceals her face under wig as she takes to the stage to perform at Boston Calling Music Festival

By Megan Pustetto For Daily Mail Australia

Published: 23:34 EST, 27 May 2016 | Updated: 06:40 EST, 28 May 2016

She has been hiding her face and dressing in outlandish costumes for years.

And Sia lived up to her reputation once more as she took to the stage at the Boston Calling Music Festival on Friday.

This time, the 40-year-old singer captivated the crowd not only with her amazing vocals, but also with her bizarre costume, dressing up in an extravagant white tiered ruffle dress.

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Cheap frills! Sia captivated the crowd at the Boston Calling Music Festival on Friday not only with her amazing vocals, but also with her bizarre costume, dressing up in an extravagant white tiered ruffle dress

Cheap frills! Sia captivated the crowd at the Boston Calling Music Festival on Friday not only with her amazing vocals, but also with her bizarre costume, dressing up in an extravagant white tiered ruffle dress

Sporting her trademark blonde and black wig which covered the entirety of her face, the Australian songstress topped off the unusual hairstyle with a large white bow. 

The Australian pop star delivered a blistering performance and opened the show wearing the gigantic white gown, which hid a mini-me of the crooner underneath.

Sia soon dropped the dress to reveal the young dancer, who delivered choreography to the star's hits like Chandelier and Elastic Heart.

Outlandish: This time, the 40-year-old singer captivated the crowd not only with her amazing vocals, but also with her bizarre costume, dressing up in an extravagant white tiered ruffle dress

Outlandish: This time, the 40-year-old singer captivated the crowd not only with her amazing vocals, but also with her bizarre costume, dressing up in an extravagant white tiered ruffle dress

Trademark style: Sporting her trademark blonde and black wig which covered the entirety of her face, the Australian songstress topped off the unusual hairstyle with a large white bow

Trademark style: Sporting her trademark blonde and black wig which covered the entirety of her face, the Australian songstress topped off the unusual hairstyle with a large white bow

Now you Sia, now you don't! The Australian pop star delivered a blistering performance and opened the show wearing the gigantic white gown, which hid a mini-me of the crooner underneath

Now you Sia, now you don't! The Australian pop star delivered a blistering performance and opened the show wearing the gigantic white gown, which hid a mini-me of the crooner underneath

Sia recently released her seventh studio album, This Is Acting, which features well-known tunes Alive and Cheap Thrills.

Sia, whose real name is Sia Kate Isobelle Furler, is known for hits including Elastic Heart and Big Girls Cry.

Earlier this year, when asked by Sunrise co-host Samantha Armytage why she still shuns the spotlight and chooses to wear a wig in public, Sia's response was simple: 'Because it's ugly, it makes me feel hunted.

'You feel like prey and they're the predator and you're being hunted ... You go into fight or flight.'

Describing celebrity attention as 'unpleasant', the notoriously reluctant star said she only ever wanted a 'regular life' while doing what she loves - making music.

'It's just like wanting to have a regular life just like a regular person and still be able to make music and sing ... but without having to sacrifice just having a regular life, that's all.' 

Entertaining: Sia soon dropped the dress to reveal the young dancer, who delivered choreography to the star's hits like Chandelier and Elastic Heart

Entertaining: Sia soon dropped the dress to reveal the young dancer, who delivered choreography to the star's hits like Chandelier and Elastic Heart

Talented: Sia recently released her seventh studio album, This Is Acting, which features well-known tunes Alive and Cheap Thrills

Talented: Sia recently released her seventh studio album, This Is Acting, which features well-known tunes Alive and Cheap Thrills

 

 

 

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