In this moral fable the narrator finally walks away from her needy friend, as she was tired of the friend using her as a crutch.
Sia told Stereo Subversion that although Some People Have Real Problems was an easy album to write for, "The Girl You Lost" took longer to pen than the other tracks. She explained: "It's like a bath. It's a big bath. I can sit down with my friends and play three chords or whatever or we'll hunt around and find the right three chords. Then they'll tell me what the song's about. Usually a sentence or a feeling will come or I can even just say to the person I'm with to tell me what it's about and give me a theme. Then eight minutes later, there it is. 'Academia' took eight minutes. 'Little Black Sandals' was five minutes. Then there are other songs that might take longer. 'The Girl You Lost to Cocaine' took a bit longer, but I don't remember why. I think I listened to it too much. It's different every time, but usually if it's a good one, it's like a bath."
A remix by Dutch DJ Sander van Doorn reached the Top 20 of the Netherlands charts. Van Doorn told UK dance DJ Dave Pearce how he came to work with Sia: "I got a promo from her with the Stonebridge remix and liked the track so much that I signed it to my label Doorn records for the BeNeLux. I also decided to do my own remix and that's how it came about!"
Sia told glasswerk.co.uk about the album title: "It's a note to self that when we're all complaining about our rich people's problems like a bitter latte or sh--ty traffic, there are people with no rice or maybe a lung missing who aren't complaining, if you get me."