The late English singer Steve Benbow recorded "Brian O'Linn" many years ago. His version is similar to that posted by Frank above, except the first verse goes:
Ah, Brian O'Linn was a gentleman born,
His hair it was long and his beard unshorn.
His teeth they stuck out and his eyes they sunk in--
"Sure, I'm a wonderful beauty," says Brian O'Linn.
Back in the 60s, I remember my friend Jay Smith singing a verse that ended, " 'Lie close to the wall,' says Brian O'Linn". Think I might have to chase that one down.