"Didn't I" is a song by American band OneRepublic, released as the third single from their fifth studio album Human through Interscope Records on March 13, 2020.

It was co-written by frontman Ryan Tedder with bassist Brent Kutzle, Zach Skelton, James Abrahart and Kyrre "Kygo" Gørvell-Dahll.

We have friends that are going through it right now and I had this idea that when you marry somebody or you choose to be with them, it’s because you've had a lot of beautiful moments and somewhere the discord gets in.

"[1][2] In terms of musical notation, "Didn't I" is written in the key of E major and has a tempo of 124 beats per minute.

[3] Steered by piano and violin, the song follow a chord progression of C♯m – E – B – A in its verses, pre-chorus, and chorus and a chord progression of F♯m – A – C♯m – B in its bridge.