Multiples of seven: Song

As usual, it takes a little finessing, but I think we'll memorize this week's multiples of seven to the tune of "My Bonnie Lies Over the Ocean":

7, 14, 21,
2-8, 35, 42!

4-9, 56, 63,
se-ven-ty, seventy-seven!

(shout) 84!