The Fifth Dimension appeared many times on my old mixtape. "Up, Up and Away" was one of many hits for them written by Jimmy Webb and when it came out in May of '67, it was played almost non-stop on KHJ radio.
In fact, I recall the competing Top 40 radio station in L.A., which was KRLA, countered with a version of the record that incorporated its call letters into the lyrics. I have no idea if the Fifth Dimension recorded a special version for them or if KRLA got permission to have soundalike group come in and dub different lyrics over some lines…or what. But at points in that version, the vocal would be "K-R-L-A" instead of "Up, Up and Away," even though the tune called for five syllables there instead of four.
That's about all I can think to write about this song other than at some point, I got awfully tired of hearing it every time I turned on the radio. It's fine but not when heard incessantly…