Kernel's learning the days of the week with a song set to the Addams Family tune:

There's Sunday and there's Monday
There's Tuesday and there's Wednesday
There's Thursday and there's Friday
And then comes Saturday
Days of the week *snap snap*
Days of the week *snap snap*
Days of the week, days of the week, days of the week *snap snap*

List of songs that use or reference days, dates, months, time, etc. - Go!