Have you ever stopped to think about what rats do for fun? Sure they crawl around and scurry Yeah they're always on the run but a rat sure likes a good time Just like you and me I'll prove it with a tale about a rat-infested brewery It started with a little lad named vermin mccann Who fell upon a drink that made him feel like quite a man He rounded up his furry boys Though some wore a frown They quickly changed their tune and they slammed a couple down. One, two, one-two-three-four! Come on all you good rats We'll send you to heaven you'll find the pearly gates in the froth and the foam 'Cause in these vats you've made quite a creation A potion that turned the guinness to gold! Like mice behind a piper Rats from all around soon headed for this factory in old dublin town They surely heard the news about this fancy new rat-brew they come They saw, they had a taste and knocked back a few The rats were in a tizzy Addicted to the bone the hairy lugs were giddy They were never going home Like a bunch of drunken pirates prepared to walk the plank they drank They sang, they took a plunge and in the beer they sank!