The Beatles loved Motown Records, covering some of the label's songs while honing their skills as a club act in Germany.

The Beatles were not an immediate success in the US—their label rejected their first two singles, and the band was mocked on the TV show 'American Bandstand.'

Before becoming a country superstar, Dolly Parton recorded girl group-style singles as a teenager, including one that became a hit outside the US.

The Beatles' appearance on 'The Ed Sullivan Show' in 1964 launched Beatlemania in the US after the band struggled to break through to American audiences.

The Ronettes' 'Be My Baby' is a quintessential 'wall of sound' record

The 1963 single features one of the most recognizable drumbeats in the world; many critics consider the song the greatest pop recording of all time. If nothing else, it's a definitive example of both the classic girl group sound and Phil Spector's ingenious 'wall of sound.'

Phil Spector's Philles Records was home to several definitive girl group singles

The label, formed by Spector and Lester Sill, released most of Spector's early "wall of sound" recordings, including the Crystals' "Then He Kissed Me" and the Ronettes' "Be My Baby." This 1963 compilation, "Philles Records Presents Today's Hits," collects some of the label's early hits.

Hear the first classic girl group record: the Chantels’ ‘Maybe’

While there were all-female vocal groups before the Chantels, most critics consider the group’s 1957 single “Maybe” to be the first record of the classic girl group sound because it established the model’s foundational elements: a mid-tempo backbeat, soaring harmonies, and yearning lyrics.

Hear how the Beatles became the most influential band on Earth, with guest Conan O'Brien.

Watch a definitive girl group documentary

The 1983 documentary "Girl Groups: The Story of a Sound" features archival footage of some of the Shirelles, the Ronettes, the Shangri-Las, and more alongside interviews with the performers and songwriters. It's a fascinating look back at the music, told by the people who pioneered it.

An American Beatles album featured a bizarre, gruesome image of the band as butchers, which was swiftly recalled.

The Boswell Sisters were the precursors to the American girl group

The jazz trio, popular in the '20s and '30s, doesn't share much in common with the sounds of the well-known pop-oriented girl groups, but the sisters' prominence in a male-dominated industry provided an early example for later groups. Check out their appearance in the 1932 film "The Big Broadcast," performing the song "Crazy People."

The Beatles' labels released almost twice as many of the band's records in the US to capitalize on the band's popularity.

The classic girl group sound arrived with doo-wop

Doo-wop was a type of vocal-based pop music popular in the '50s that coincided with the rise of early rock 'n' roll. The mid-tempo, harmony-heavy songs about teenage life provided the template for the girl group sound, which arrived at the end of the decade.

How British youth resurrected overlooked American soul music

Motown released some of the 1960s' biggest soul records and changed the sound of pop music. The label also inspired countless smaller, regional labels that released songs by lesser-known artists that received limited attention. That changed with the rise of British Northern Soul, an underground scene that repurposed these obscure records (including several overlooked Motown releases) for all-night dance parties and, in the process, minted some unexpected American superstars.

After the bitter breakup of the Beatles, John Lennon and Paul McCartney only played music together one more time—at an impromptu studio session in 1974, joined by Stevie Wonder.

The Beatles stopped touring in 1966, citing frustration with the era's limited sound systems.

'Where Did Our Love Go' was the first of 12 No. 1 singles for the Supremes

The Beatles' visit with Maharishi Mahesh Yogi helped inspire Western interest in Eastern spirituality

The Fab Four met with the guru—the creator of Transcendental Meditation—in 1968 in Rishikesh, India. The band's George Harrison and his wife had been interested in Indian culture for several years, but the meeting with Maharishi signified a meeting of Western popular culture with Eastern spirituality that would inspire the rising hippie movement.

The Shirelles' 'Will You Love Me Tomorrow' was the first girl group record to reach No. 1

The 1960 song, composed by husband-and-wife Brill Building occupants Gerry Goffin and Carole King, was more than a little suggestive. The main character wondered if her partner would abandon her after a night of passion, leading to some stations banning the record. But it also propelled the song to the top of the Billboard Hot 100.

Brian Wilson and the Beach Boys were an influence on early punk rock

The Beach Boys' sunny sound profoundly influenced early punk acts like the Ramones, who took Brian Wilson's sugary hooks and ramped up the tempo.

Take a look at an early rock 'n' roll artifact

This 1956 jukebox musical, "Rock, Rock, Rock!," is an early example of the burgeoning rock 'n' roll culture—with performances from Chuck Berry, Frankie Lymon and the Teenagers, D.J. Alan Freed, and several others. It was also a catalyst, sending the new youth culture into theaters around the country.

Listen to the Beatles' 'Revolver,' the band's groundbreaking 1966 album.

Brian Wilson originally wrote the Beach Boys' classic 'Don't Worry Baby' for the Ronettes, but the legendary girl group rejected it.

The Beatles' 'Tomorrow Never Knows,' the final track from 1966's 'Revolver,' used innovative recording methods—including a rudimentary form of sampling—to redefine the sound of popular music.

An early Sex Pistols show is credited with inspiring other influential acts

When the Sex Pistols first ventured out to a small music hall in Manchester, only 40 people were in attendance. But, like the longtail influence of the first Velvet Underground album, the show's impact was massive: In the crowd that night were members of Buzzcocks, the Smiths, and Joy Division.

The '90s saw a resurgence of the girl group

The '90s saw a resurgence of the girl group, with acts like TLC, the Spice Girls, and Destiny's Child turning the model on its head. While still strongly influenced by the '50s and '60s girl groups, these acts also worked in hip-hop and dance music. More significantly, they emphasized female empowerment—or "girl power"—rather than adolescent yearning.

Brian Wilson and the Beach Boys were an influence on early punk rock

The Beach Boys' sunny sound profoundly influenced early punk acts, such as the Ramones, who took Brian Wilson's sugary hooks and ramped up the tempo. In the 1980s, 1990s, and 2000s, California pop-punk acts such as the Descendents, Green Day and Blink-182 continued the tradition.

Check out the records stocked in the jukebox at the Stonewall Inn, the bar responsible for modern Pride celebrations.

Explore a critics' list of the 100 best songs of the 1960s, featuring records by the Beach Boys, the Ronettes, Miles Davis, and more.

Fifty backstage photos of musicians in the 1970s

Elton John, James Brown, Cher, Diana Ross, and many others all have famous photos seen multiple times on album covers, iconic images from events, and more. Rare is the unseen backstage photo of the greats, lounging or rocking out or, like Bo Diddley, frying up some chicken pre-show at the Garden. Peruse this incredible collection of candid shots of 1970s stars waiting in the wings to come on stage.

Listen to "Yesterday and Today," the 1966 Beatles album only released in the US.

Phil Spector's 'wall of sound' revolutionized girl groups—and pop music

The method captured a room of live musicians and transmitted the sound into a basement outfitted with more speakers and microphones. That sound was then sent into the central control room, producing a massive recording that sounded unlike anything else in pop music.

Explore all 58 famous figures—including artists, thinkers, politicians, athletes, and other pop culture icons—portrayed on the Beatles' 'Sgt. Pepper's Lonely Hearts Club Band' album cover.

A legendary rock writer ranks the greatest girl group records

Greil Marcus is considered one of the greatest American rock writers of all time, providing a literary legitimacy to rock ‘n’ roll when it was still considered mere pop culture. This 1975 essay on the great girl group records is the perfect example, offering a thought-provoking analysis of the era’s definitive singles.

The Beatles' song 'Taxman' was inspired by Britain's tax structure.

Sister Rosetta Tharpe is considered the godmother of rock 'n' roll

Chuck Berry, Little Richard, and Fats Domino are cited as the godfathers of rock ‘n’ roll, but the undisputed godmother is Sister Rosetta Tharpe, a gospel singer who crossed over to the secular world and changed the course of American music. Tharpe’s electric guitar playing influenced early rock ‘n’ roll.

The Brill Building was a breeding ground for girl group classics

New York City's Brill Building housed the working offices for over 160 music industry professionals, including some of the country's finest songwriters, such as Neil Diamond, Burt Bacharach, and George Clinton. Below is a 1959 picture of three more Brill Building pros: Carole King, Paul Simon, and Gerry Goffin.

The Velvet Underground is often considered a starting point for punk rock

The band blended Warhol’s Pop Art with Beat poetry, early rock ‘n’ roll and the European avant-garde, creating a sound that was often chaotic, noisy and abrasive. The band’s debut album, “The Velvet Underground and Nico,” sold poorly, but (supposedly) everyone who purchased a copy started a band.