Not sure who the American Lennon is, but DS that is a great trio. Rock? hmmmm. Pop music maybe. Elvis kicked it off. Dylan broadened into folk. And Bruce melted the two together.

Lurking in the background - Billy Joel, The Eagles ... and we go up to Motown....the Supremes and the Temptations.

American "rock" has had a very wide variety of influence and stars. The East Coast sound, West coast, Southern Rock, Country, Motown, Memphis, etc.