THE SUBMARINE

Hi!
P5 children have learnt a poem and they present it here to us:

In the blue, blue sea

I can see, see, see

Red stars, goldenfish,

brown seahorses and green seaweed.

In the blue, blue sea

I can see, see, see

Red stars, goldenfish,

brown seahorses, green seaweed

and a yellow submarine!

What song do they sing after the poem?