"Let Me Go" by Hailee Steinfeld and Alesso feat. Florida Georgia Line
Why it's sad: Here we have a love that starts out great, but ultimately ends up running its course. As for what the song means to Steinfeld, she told Teen Vogue, "More than ever in the last couple months in my life, I've experienced what it's like to try and maintain a relationship while working . . . you realize that when you love someone so much and you can't give them the time, and the energy that they deserve, it's heartbreaking."
The saddest lyrics: "I've been hoping somebody loves you in the ways I couldn't / Somebody's taking care of all of the mess I made / Someone you don't have to change"