That's the Way to the Zoo
From Tardis Wiki, the free Doctor Who reference
That's the Way to the Zoo was a song composed by J.F. Mitchell around 1881. In Gabriel Chase during 1883, Gwendoline Pritchard played on a piano and sang the song. (TV: Ghost Light)
Lyrics
That's the way to the zoo, that's the way to the zoo. The monkey house is nearly full, but there's room enough for you. Take a bus to Regent's Park, make haste before it shuts, Next Monday I will come and bring you such a lot of nuts!