Lord Mayor Councillor Ryan Murphy was joined by Cool FM breakfast presenters Pete, Rebecca and Paulo, and a host of local performers and artists to illuminate the city.
Here are 16 fantastic images from the event.
9. Belfast Christmas Lights Switch-On
Cool FM breakfast presenter Rebecca talks to the crowds Photo: Kelvin Boyes / Press Eye
10. Belfast Christmas Lights Switch-On
A young girls enjoying the fun on stage Photo: Kelvin Boyes / Press Eye
11. Belfast Christmas Lights Switch-On
Young children captivated by the Christmas lights switch-on in Belfast on Saturday night Photo: Kelvin Boyes / Press Eye
12. Belfast Christmas Lights Switch-On
Crowds watching the Belfast Christmas lights switch-on Photo: Kelvin Boyes / Press Eye
3 / 4