Songs that have brief musical references to other tunes in there..

xps Jellyfish have a "When You Wish Upon a Star" reference too, in "Joining a Fan Club" — the strings come in with a bit of the melody after a lyrical reference to Pinocchio

At the end of "Fruits and Vegetables" by Chunky, Novi and Ernie, they interpolate melodies from at least three sources:

Prokofiev’s Peter and the Wolf
The Merrie Melodies theme
The Toreador theme from Bizet’s Carmen

'The Purple People Eater' by Sheb Wooley (1958) has brief quotations of 'Short Shorts' by The Royal Teens and 'Tequila' by the Champs, both of the same year, as well as Little Richard's 'Tutti Frutti', then a fairly recent hit.

Also, The Lamb Lies Down on Broadway has a bit of 'On Broadway' by the Drifters.

...and there's a few bars of 'In the Hall of the Mountain King' in 'Joan Crawford' by Blue Oyster Cult