Remember the girl from Sia's 'Chandelier' video? Well she's all grown up and looking very different!

Maddie Ziegler was just 11 years old when she shot to fame with her breathtaking performance in Sia's Chandelier music video.

Best known for wearing a nude leotard and a blonde wig as she performs the interpretive routine, Maddie also starred in Sia's video for Elastic Heart alongside Shia LaBeouf.

But now, three years later, Maddie is all grown up!

In fact, she has grown up so much the dancing star was unrecognisable as she walked the red carpet at the iHeartRadio Music Awards yesterday...