Chicago re-releases Beginnings as a single after it was previously released on their debut album The Chicago Transit Authority in October 1969. As a single, Beginnings reaches #7 on the US Billboard Hot 100 Chart. It is written by Robert Lamm:
…whenever we play Beginnings I always think of the girl that I was with when I wrote : Beginnings — at the beginning. Because for me, when I’m singing one of the songs that I wrote, I always go back to when I wrote it, the moment that I wrote it.