Maddie Ziegler received a special gift from frequent collaborator Sia on her 16th birthday.

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The 42-year-old Australian singer took to Instagram Sunday after surprising Ziegler with a brand new Audi.

Sia shared a slideshow of photos and videos of herself with Ziegler and the car.

The pictures show Sia embracing Ziegler as they celebrate.

"Happy Birthday to my most special noonoo @maddieziegler," Sia captioned the post.

Ziegler ahared a slideshow of photos on her own account.

Stevie Wonder's sons Kailand Morris and Mandla Morris and other friends also attended her birthday celebration.

"Sweet sixteen <3 canít believe this car is actually mine !!" Ziegler captioned her Instagram posting.