The nearly six-minute tune is an anthem to the end of a relationship. But with a twist. Not only does it tug at the heartstrings of any of those who have been dumped, but the song also includes hope.

It’s impossible to think about the hit NBC sitcom Friends without humming the theme song, “I’ll Be There for You” by The Rembrandts. The lyrics perfectly spoke to the point of the series, which was ...