This song by Elliott Yamin is in Ab.
These are the “cheat” chords I played…
Part 1: Bbm7 - Fm7 - Eb4 - Eb
Part 2: Db2 - Fm7 - Eb4 - Eb
Part 3a: Ab2 - Eb - Bbm7 - Db2
Part 3b: Ab2 - Eb - Db2
Part 4a: Cm7 - Bbm7 - Fm7
Part 4b: Gb2 - Db/Eb - [...]
