Today Sia released a new single "Alive," which she wrote with Adele and Tobias Jesso, Jr. They penned it with Adele's third album 25 in mind, though Adele ultimately turned it down. So "Alive" is the lead single for Sia's next album This Is Acting, which is of songs that she originally wrote for other artists. (Mind you, her past credits include Celine Dion, Beyoncé and Rihanna.) But, truth be told, there is no telling "Alive" apart from Sia's recent work like the Grammy-nominated "Chandelier." It's an affecting ballad, where Sia sounds as if she is fighting for her life, which makes its ending feel all the more triumphant. Listen below.