Some may say “Set Fire to the Rain” from 2011 should really be the best Adele hit, and I’m inclined to agree. However, something about this song hits in its simplicity.

Cosmopolitan put it top of its playlist of Sad Songs to Blast When You're Feeling Hella Moody. This one reached the US top 20 but missed the UK top 40. It has snowballed on social media and is now ...