Sia Continues Her Unstoppable Run With 6-Year-Old Hit, But Just How High Can It Go?
b'Just how high can Sia\'s revived hit climb? On the latest Billboard Pop Shop Podcast, Katie & Keith discuss the song\'s unlikely trajectory and what has driven its "Unstoppable" recent run on our charts.\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'