I had no recollection of that Sam Neeley song either; but I kinda liked -- it was rather Kristofferson-esque. Not much of a career; 3 diff labels in 5 years and only one other Top 40 appearance.
And after hearing Mac Davis twice in the first hour of that '74 set over on KFRC, here's Gallery covering his "I Believe in Music", featuring the cheeziest synthesizer this side of Nu Shooz (but hey, at least synths were relatively new in '72). Followed by the 5th D's gorgeous "If I Could Reach You" -- BOS.