California sound in the context of Surfin'

Sunshine pop (originally called soft pop and soft rock) is a loosely defined form of pop music that was first associated with early soft rock producers and songwriters based in Los Angeles, California, during the mid- to late 1960s. Its studio-centric sound was primarily rooted in folk rock and easy listening, typically featuring rich harmony vocals and progressive elements, while lyrics combined idyllic imagery with a subtle awareness of societal change, melancholic undertones, and countercultural themes. It was among the dominating music styles heard in television, film, and commercials of the era.

Branching from the nascent California sound, the movement initially straddled multiple styles among many groups who existed briefly while adapting to evolving music trends, resulting in much crossover with bubblegum, folk-pop, garage rock, baroque pop, and psychedelia. Most groups were less successful sound-alikes of acts such as the Mamas & the Papas, led by John Phillips, and the 5th Dimension, whose songs were initially helmed by Jimmy Webb. Curt Boettcher produced numerous key records for the Association, Eternity's Children, his band the Millennium, and with collaborator Gary Usher (Sagittarius). Though the Beach Boys rarely approached the style, Brian Wilson's production of their 1966 album Pet Sounds was a foundational influence on this milieu, as were the arrangements of Burt Bacharach.

The Beach Boys are an American rock band formed in Hawthorne, California, in 1961. The group's original lineup consisted of brothers Brian, Dennis, and Carl Wilson, their cousin Mike Love, and their friend Al Jardine. Distinguished by their vocal harmonies, adolescent-oriented lyrics, and musical ingenuity, they are one of the most influential acts of the rock era. The group drew on the music of older pop vocal groups, 1950s rock and roll, and black R&B to create their unique sound. Under Brian's direction, they often incorporated classical or jazz elements and pioneered unconventional recording techniques in innovative ways.

They formed as a garage band centered on Brian's songwriting and managed by the Wilsons' father, Murry. Jardine was briefly replaced by David Marks during 1962–1963. In 1962, they enjoyed their first national hit with "Surfin' Safari", beginning a string of hit singles that reflected a southern California youth culture of surfing, cars, and romance, dubbed the "California sound". They were one of the few American rock bands to sustain their commercial standing during the British Invasion. 1965 saw the addition of Bruce Johnston to the band, as well as Brian's move away from beach-going themes for more introspective lyrics and ambitious studio productions. In 1966, the Pet Sounds album and "Good Vibrations" single raised the group's prestige as rock innovators; both are now widely considered to be among the greatest and most influential works in popular music history.