Your earworm is ...

[markem]

Will you still need me,
Will you still feed me,
When I'm 64?

The only way to get that one out of my head over the past 3 days has been to switch to this one:

Bye, bye Miss American Pie
Drove my Chevy to the levy
But the levy was dry
Good 'ol boys drinking whiskey and rye
Singing this will be the day that I die.