Sam and Demi's friendship grew out of admiration for each other. They've both publicly gushed about the other for years, and Demi even said she was dying to collaborate with Sam. She got her wish when the two teamed up for their newest single, "I'm Ready."
Sam also opened up about their friendship with Demi, telling Harper's Bazaar, "I am enamoured by her strength and willingness to tell her story, and also her openness about still not being perfect and still learning in front of everyone."