<P> In 1975 Gaudio wrote "Who Loves You" and "December 1963 (Oh, What A Night)" with his future wife Judy Parker . The songs became big hits for a reconstituted Four Seasons group (only Valli was left of the original lineup; Gaudio stopped touring with them in 1971 to concentrate on writing and producing). </P> <P> Gaudio, Tommy DeVito, Frankie Valli and Nick Massi--the original members of The Four Seasons--were inducted into the Rock and Roll Hall of Fame in 1990 and the Vocal Group Hall of Fame in 1999 . </P> <P> In addition to his work for the Seasons and Sinatra, he wrote and / or produced for Michael Jackson, Barry Manilow, Diana Ross, Eric Carmen, Nancy Sinatra, Peabo Bryson, and Roberta Flack . In particular, he produced six complete albums for Neil Diamond, and the movie soundtrack albums for Diamond's The Jazz Singer and Little Shop of Horrors . Gaudio also produced the hit "You Don't Bring Me Flowers" for Barbra Streisand and Neil Diamond, a duet that reached the top of Billboard charts in 1978, for which he received a Grammy Award nomination . </P> <P> In the 1990s Gaudio moved to Nashville and produced recordings for Canadian country artist George Fox, among others . He lured Neil Diamond to Nashville to record the album Tennessee Moon . In recent years Gaudio has focused on musical theater, writing the music for the 2001 London West End production of Peggy Sue Got Married . </P>

Who wrote most of the four seasons songs