“December, 1963 (Oh, What a Night)” is a song originally performed by the Four Seasons, written by original Four Seasons keyboard player Bob Gaudio and his future wife Judy Parker, produced by Gaudio, and included on the group’s album, Who Loves You (1975). The song features drummer Gerry Polci on lead vocals, with Frankie Valli, the group’s usual lead vocalist, singing the bridge sections and backing vocals and bass player Don Ciccone singing the falsetto part.
According to the co-writer and longtime group member Bob Gaudio, the song’s lyrics were originally set in 1933 with the title “December 5th, 1933,” and celebrated the repeal of Prohibition, but the lyrics were changed at the urgings of Frankie Valli and lyricist Parker to reposition the song as a nostalgic remembrance of a young man’s first affair with a woman, and, more specifically, Gaudio’s courtship with his wife, Judy Parker.