Another powerful ballad about coming of age, When We Were Young, was co-written by Adele and Tobias Jesso Jr.
In a recent interview the 27-year-old artist said the uplifting track is about "Seeing everyone that you've ever fallen out with, everyone that you've ever loved."
"You're all thrown together at this party when you're like 50, and it doesn't matter and you have so much fun and you feel like you're 15 again" she told SirusXM.
"So that's the kind of vibe of it really ... My favourite lyrics in it is `You look like a movie, you sound like a song, my God this reminds me of when we were young."