"Twinkle Twinkle Little Star"
From Tardis Wiki, the free Doctor Who reference
The Second Doctor plays Twinkle Twinkle Little Star, much to the Third Doctor's chagrin. (TV: The Three Doctors)
"Twinkle Twinkle Little Star" was a song that the Second Doctor played on his recorder after being plucked into the Third Doctor's timeline by the Time Lords. The Third Doctor was not pleased by this music. (TV: The Three Doctors)
The Eighth Doctor also played the tune. (PROSE: The Taint)
