"What instrument can only be played by a pair of…

“Tuba” sounds like “two baa,” and there are puns. “What instrument did the two sheep play? the tuBA” was posted on Twitter by Lexie Irwin on April 9, 2013.

A riddle was posted on Reddit—Cleanjokes on June 15, 2016:

Q: What is a pair of sheep’s favorite instrument?
A: Two-Baaas.

Twitter
Lexie Irwin
@lexie_irwin
what instrument did the two sheep play? the tuBA
8:05 PM - 9 Apr 2013

Twitter
KILLER QUEEN
@dubstepsmellsa
what instrument does a Russian sheep play? the baaaalalaika
10:01 AM - 2 Dec 2013

Reddit—Cleanjokes
Posted by u/Evilcanary June 15, 2016
What is a pair of sheep’s favorite instrument?
Two-Baaas.
COMMENTS
KenInNH
I thought it was the ewe-kulele

Twitter
KMart
@kirkofmartin
What instrument do sheep play?
Baaaaasoon.
#puns
9:53 AM - 9 Mar 2017

Twitter
mylee
@myleerose_
what instrument does a sheep play?
a tubaaaaaa
8:30 PM - 24 May 2017

Twitter
Doug Robertson
@TheWeirdTeacher
If a pair of sheep played an instrument they’d play the tuba
1:27 PM - 15 Oct 2018

Worst Jokes Ever
Puns
March 8, 2019
What instrument do a pair of sheep play, The two-baaaa

Reddit—Cleanjokes
Posted by u/Danielaurence June 17, 2019
What instrument can only be played by a pair of sheep?
The tubaa.

“What instrument can only be played by a pair of sheep?”/“The tubaa.”