"The Sun Ain't Gonna Shine (Anymore)" is a song written by Bob Crewe and Bob Gaudio. It was originally released as a single by Frankie Valli in 1965 on the Smash label, but was more successful when recorded by The Walker Brothers in 1966. Cher and Keane have also recorded the song. Frankie Valli recorded and released the first version of the song but his single achieved only limited success, charting on Billboards Bubbling Under Hot 100 singles chart but not making the Hot 100 itself. Although it was recorded in a Four Seasons recording session (with the other group members at that time), it was Valli's first official "solo" single in over a decade n 1966, The Walker Brothers released their remake as a single. Retitled "The Sun Ain't Gonna Shine Anymore", this version met with much greater success than Valli's. It topped the UK Singles Chart,[2] and also became their highest rating song on the Billboard Hot 100 chart in the U.S., where it peaked at #13.[3] The single also hit the top 10 in the Netherlands. Their version was an imitation of the "Wall of Sound" style of Phil Spector, including a wordless Chorus, Strings, and echo effects. The Walker Brothers sounded like the Righteous Brothers, with the lead singer imitating Bill Medley. In 2010, the Walker Brothers version was used in the promotional trailer for the AMC television series The Walking Dead. In 2012, the Walker Brothers version played a prominent role in the film Seeking a Friend for the End of the World. Wikipedia