The singer visited Oswald Road Primary School on Monday (30Sep13) and was greeted by enthusiastic staff and children as he toured the grounds and classrooms.
In honour of their guest, pupils put on a disco-dancing display and sang along to some of the Bee Gees' most famous songs.
Gibb was asked by one student whether he ate in the school cafeteria or brought food from home, and he told the youngster, "I used to have sugar sandwiches or bread and butter with sugar, or bread and butter with tomato ketchup and that's what we used to bring to school."
The star also paid a visit to his childhood home, where he first learned how to sing with his late brothers Robin and Maurice Gibb.
The Stayin' Alive hitmaker, who is in the midst of a solo tour, made the visit after performing a concert in the city on Sunday (29Sep13).