Sia

The trio we never knew we needed.

This is not her first time on stage.

Sia tracked down her since-adopted son after spotting him in a documentary.

Sia hopes that her grandkids will call her a nickname instead.

The boys were at risk of ageing out of the foster care system.

It's a banger.

Since 2002, covers have been a fan-favorite staple of Kelly's concerts.

Sia went by 'Cici.'