When a singer is overdoing a song, I've grown to dub it "all a little 'chopping broccoli'". Think of U2 singing a song off "Horizon" -they oversell themselves.
I got the line off Dana Carvey's uproarous "pretentious piano player" and before you do your next impression of Elton John goining "rocket, rocket, rocket, rocket, rocket man" (as he did at MSG earlier this year) just remember this: