Some songs about light!

• Neon Lights Kraftwerk 
• Bright Lights, Big City Jimmy Reed
• Party Lights Claudine Clark 
• There Is a Light That Never Goes Out The Smiths 
• Umi Says Mos Def 
• The Light Pours Out of Me Magazine 
• I'm Beginning to See the Light Ella Fitzgerald 
• Dry the Rain The Beta Band 
• You Are the Light Jens Lekman 
• Leave a Light On Belinda Carlisle

Source: The Guardian