I'm a Believer by the Monkees still had two weeks of its six week run at #1 this month. In mid-month that would change to
Kind of a Drag by the Buckinghams for two weeks. Another teen love-lost lament song. That's what was kind of a drag, other than this being their only #1 song and, well, the song itself.
[Sidenote: According to Wikipedia, The Buckinghams were
an American Sunshine pop band from Chicago, Illinois, United States. They formed in 1966, and went on to become one of the top selling acts of 1967, charting their only five Top 40 hits in the U.S. that year.In my book their best song was the cover of the jazz classic, Mercy, Mercy, Mercy for which they wrote lyrics. It topped out at #5 later in 1967. But that's me.]