Calling Tom Bombadil

If you Roll 6 Tap all your creature under your control.
You need to call Bombadil to untap your creature
by saying/siging:
Ho! Tom Bombadil, Tom Bombadillo!
By water, wood and hill, by the reed and willow,
By fire, sun and moon, harken now and hear us!
Come, Tom Bombadil, for our need is near us!