Back up vocals

Backing vocalists are singers who provide vocal harmony with the lead vocalist or other backing vocalists. In some cases, a backing singer may sing alone as a lead-in to the main vocalist's entry or to sing a counter-melody. Backing vocalists are used in a broad range of popular music, traditional music and world music styles.

Solo artists may employ professional backing vocalists in studio recording sessions as well as during concerts. In many rock and metal bands (e.g., the power trio), the musicians doing backup vocals also play instruments, such as guitar, electric bass, drums, or keyboards. In Latin or Afro-Cuban groups, backup singers may play percussion instruments or shakers while singing. In some pop and hip-hop groups and in musical theater, the backup singers may be required to perform elaborately choreographed dance routines while they sing through headset microphones.

The style of singing used by backup singers varies according to the type of song and the genre of music the band plays. In pop and country songs, backup vocalists may perform vocal harmony parts to support the lead vocalist. In hardcore punk or rockabilly, other band members who play instruments may sing or shout backup vocals during the chorus (refrain) section of the songs.

Alternative terms for backing vocalists include backing singers, backing vocals, additional vocals or, especially in the U.S. and Canada, backup singers or sometimes background singers or harmony vocalists.

While some bands use performers whose sole on-stage role is performing backing vocals, it is common for backup singers to have other roles. Two notable examples of band members who sang back-up are The Beach Boys and The Beatles. The Beach Boys were well known for their close vocal harmonies, occasionally with all five members singing at once such as "In My Room" and "Surfer Girl". All five members would sing lead, although most often Brian Wilson or Mike Love would sing lead with guitarists Carl Wilson and Al Jardine and drummer Dennis Wilson singing background harmonies. The Beatles were also known for their close style of vocal harmonies – all Beatles members sang both lead and backup vocals at some point, especially John Lennon and Paul McCartney, who frequently supported each other with harmonies, often with fellow Beatle George Harrison joining in. Ringo Starr, while not as prominent in the role of backup singer as his three bandmates due to his distinctive voice, can be heard singing backing vocals in such tracks as "The Continuing Story of Bungalow Bill" and "Carry That Weight". Examples of three-part harmonies by Lennon, McCartney and Harrison include "Nowhere Man", "Because", "Day Tripper", and "This Boy". The members of Crosby, Stills, Nash & Young and Bee Gees all each wrote songs and sang back-up or lead vocals and played various instruments on their albums and various collaborations with each other.

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