Blues Travelers
Hook
The hook of the song is the catchy part people seem to remember and sing out loud. Normally it is the chorus but not always. The lead singer of the Blue Travelers, John Popper, is just saying no matter what lyrics you put in a song, you just need to make the hook catchy and people will like it.
The message is that you don't need deep, meaningful lyrics to make people like your music. You need a good hook, and it helps to be charismatic. On a deeper level, this can relate to superficial society in general, which is demonstrated in the video which shows beauty pageant contestants and a politician singing the song - they're all show and no substance, but most people don't notice or care.
It doesn't matter what I saySo long as I sing with inflectionThat makes you feel I'll conveySome inner truth or vast reflection