You'll probably know Australian singer-songwriter Sia from some of her hits such as 'Chandelier' and 'Cheap Thrills'. Surprisingly, Sia does not want to be in the spotlight and has often worked with dance celebrity Maddie Ziegler to represent her in her music videos and album artwork. Despite her aversion to becoming a celebrity, Sia is now famous for her catchy tunes and impressive vocals.
Fun fact: one of the biggest songs you may recognise Sia's vocals on is 'Titanium' which she co-wrote with David Guetta. She sang on it for the demo, but it was actually never her intention to be the featured artist on the track! Rumour has it that Guetta couldn’t find anyone else that lived up to her vocals and so used her demo in the final release.