“What kind of music does a leprechaun band play?”/“Shamrock ‘n’ roll.”

A leprechaun riddle is:
 
Q: What kind of music does a leprechaun band play?
A: Shamrock ‘n’ roll.

 
The joke has been cited in print since at least 2001.
 
 
Kidsjokes.co.uk (June 24, 2001)
St Patricks Day Jokes
What kind of music does a leprechaun band play?
Shamrock ‘n’ roll!
   
Geek Buffet
Tuesday, March 20th, 2007
St. Patty’s Day, Dublin Style
What kind of music does a leprechaun band play? Sham Rock. Ba-dum-dum.
 
Sudoku Puzzles
Moneybags O’Callaghan (Playing Hide N Seek)
18/Mar/10 12:32 PM
What kind of music does a leprechaun band play?
Shamrock ‘n’ roll!
 
Facebook
Fuzzhead, Geezer and Meat
March 15, 2012 ·
What kind of music does a leprechaun band play?
 
Twitter
Frugal Fairhope‏
@FrugalFairhope
What kind of music does a leprechaun band play?
Shamrock ‘n roll
Thanks 24/7
6:05 AM - 16 Mar 2012
 
Twitter
Hurlbert Toyota‏
@HurlbertToyota
What kind of music does a leprechaun band play? Shamrock ‘n’ roll! #HappyStPatricksDay
12:31 PM - 17 Mar 2015
 
Twitter
OnlineCop‏
@OnlineCop
Why kind of music does a leprechaun like to head bang to? Shamrock!
9:50 PM - 25 Jul 2016