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David Lee Marks (born August 22, 1948) is an American guitarist, singer and songwriter. He is best known as a member of the American rock band The Beach Boys, with whom he recorded four studio albums, and of whom he was a member from 1962 until 1963, again from 1997 until 1999, and lastly in 2012. Following his initial departure from the band, Marks fronted the Marksmen and performed and recorded as a session musician. A neighbor of the Wilson family - Brian, Dennis, and Carl Wilson - and a frequent participant at the Wilson family's Sunday night singalongs, Marks officially joined the Beach Boys in February 1962 as its rhythm guitarist.

In February 1963, Dennis Wilson was injured in a car accident and his replacement was Mark Groseclose, who went to high school with Carl Wilson. Marks and Groseclose became friends and Marks eventually took over Groseclose's garage band, the Jaguars, which he renamed the Marksmen. The band was initially a side project for the aspiring songwriter, who was growing tired of his songs being passed over for Beach Boys records by Murry Wilson.  After Marks left the Beach Boys, the Marksmen became his full-time focus, becoming one of the first acts to be signed to Herb Alpert's A&M Records in 1964. Murry Wilson reportedly threatened radio deejays in order to keep them from playing the Marksmen's records. Later, the group signed with (and released a single on) Warner Bros. Records, but in spite of packed concert venues up and down the state of California, lack of air play precluded any further releases. The 2009 release of Marks & the Marksmen Ultimate Collector's Edition 1963-1965 marks the first-time the entire Marksmen catalog was made available to the public.  In 1966, Marks played with Casey Kasem's Band Without a Name. He then worked with the late 1960s psychedelic pop band, The Moon, along with Matt Moore, Larry Brown, and David Jackson. The band signed a production deal with producer Mike Curb and released two under-promoted albums on the Imperial label. He also performed with Delaney and Bonnie, Colours (recording lead guitar on their second album), and Warren Zevon. By the time Marks was 21 years old, he had been signed to five label deals and had grown disillusioned with the Los Angeles music scene. In 1969, he relocated to Boston, where he studied jazz and classical guitar as a private student at the Berklee College of Music and the New England Conservatory of Music in 1970-71. CANNOTANSWER
<bot>: David Marks