Gandalf the Grey
Gandalf the Grey
Castin’ lotsa spells ’cause he’s a wizard all the way!
Rides around on Shadowfax
Faster than the breeze
Ladies all love Gandalf
And he never cuts the cheese!

First in a series. If the Other Characters in Lord of the Rings Went Around Singing Little Songs of Praise About Themselves, Like That Annoying Tom Bombadil.
There is no second entry in the series.