A couple days ago, I was playing the chords of "I Want You Back Again" with some approximation of the vocal melody on top of them. In doing so, I discovered something interesting about the first verse, which I then referenced the recordings to verify. The "feet" in the line "To stand on my feet" is sung to a C note. The song is in C minor, so this is the tonic note, the pitch that the key is based on. In the same way, the "feet" in the lyric symbolize the foundation, as it were, that the singer/speaker wishes to regain.
I knew off-hand that the Decca recordings (the single version and the alternate take* included on both The Decca Stereo Anthology and Zombie Heaven) are in C minor, but in referencing the version on Still Got That Hunger, I discovered that the Zombies actually raised the key to D minor there. The lyric is ever-so-slightly different ("Somebody help me / Stand on my feet" instead of "Somebody help me / To stand on my feet"), but the "feet" there are also sung to the tonic note.
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*Oddly enough, what's termed the "alternate" take on The Decca Stereo Anthology and Zombie Heaven was actually recorded before the single version. The alternate version was recorded on 25 November 1964 as part of the sessions for the Zombies' first album, and the single version was recorded on 2 March 1965.
