Based on “On Top of Old Smoky” by The Weavers (US #2 1951).
Hit version by Tom Glazer & the Do-Re-Mi Children’s Chorus (1963).
From the wiki: “‘On Top of Spaghetti’ is a ballad and children’s song with the most known performance by folk singer Tom Glazer with the Do-Re-Mi Children’s Chorus in 1963. The song is sung to the tune of ‘On Top of Old Smoky’, first recorded in 1925 by George Reneau and made popular in 1951 by The Weavers. It is the tale of a meatball falling off of a pile of spaghetti and rolling away ‘after somebody sneezed.'”
Tom Glazer & the Do-Re-Mi Children’s Chorus, “On Top of Spaghetti” (1963):