"Light & Day", also known as "Section 9 (Light & Day/Reach for the Sun)", is a single from The Beginning Stages of...

The Beginning Stages of...

The Beginning Stages of... is the debut album from The Polyphonic Spree. The US re-release version of the album has both the original CD plus a bonus CD that features four alternate tracks and a music video for "Light & Day ". The UK re-release is identical to the original release...

by The Polyphonic Spree

The Polyphonic Spree

The Polyphonic Spree is a choral symphonic pop rock band from Dallas, Texas that was formed in 2000 by Tim DeLaughter. The band's sound relies on a variety of vocal and instrumental color by featuring a choir, flute, trumpet, trombone, violin, viola, cello, percussion, piano, guitars, bass, drums,...

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The song has been used several times in popular culture - once in an episode of Scrubs

Scrubs (TV series)

Scrubs is an American medical comedy-drama television series created in 2001 by Bill Lawrence and produced by ABC Studios. The show follows the lives of several employees of the fictional Sacred Heart, a teaching hospital. It features fast-paced screenplay, slapstick, and surreal vignettes...

, once in an episode of Undone

Undone (radio series)

Undone is a radio comedy broadcast by the BBC on the digital channel BBC 7, written by and starring Ben Moor. It uses a sci-fi theme of parallel universes to poke fun at life and especially the media business in London...

, the documentary Murderball, an episode of Chuck

Chuck (TV series)

Chuck is an action-comedy/spy-drama television program from the United States created by Josh Schwartz and Chris Fedak. The series is about an "average computer-whiz-next-door" named Chuck, played by Zachary Levi, who receives an encoded e-mail from an old college friend now working for the Central...

and in advertisements for the supermarket

Supermarket

A supermarket, a form of grocery store, is a self-service store offering a wide variety of food and household merchandise, organized into departments...

 Sainsbury's. In April 2010, research conducted by PRS for Music revealed that the song was the most performed in UK Television advertising.

The Eternal Sunshine of the Spotless Mind

Eternal Sunshine of the Spotless Mind

Eternal Sunshine of the Spotless Mind is a 2004 American romantic science fiction film about an estranged couple who have each other erased from their memories, scripted by Charlie Kaufman and directed by the French director, Michel Gondry. The film uses elements of science fiction, psychological...

DVD includes a music video for the song, featuring scenes from the movie altered so that both the main actors (Carrey and Winslet), as well as various inanimate background elements of the movie (a brain scan, a plate of vegetables, a house), appear to be lip-syncing to the song.