Girl group in the context of "Holiday (Dizzee Rascal song)"

True Blue is the third studio album by American singer-songwriter Madonna, released on June 30, 1986, by Sire Records. In early 1985, Madonna became romantically involved with actor Sean Penn, and married him six months later on her 27th birthday. Additionally, she met producer Patrick Leonard while on the Virgin Tour, and formed a professional relationship with him. The first songs they created together were "Love Makes the World Go Round", and the ballad "Live to Tell," which was featured in the film At Close Range, in which Penn starred.

In late 1985, Madonna and Leonard began working on her third studio album; she also enlisted the help of former boyfriend Stephen Bray, with whom she had worked on her previous record Like a Virgin (1984). Titled True Blue, the record saw Madonna co-writing and co-producing for the first time in her career. Inspired by Madonna's love for Penn, to whom she dedicated it, True Blue is a dance-pop album that features influences of Motown sound, girl groups, and Latin pop.

K-pop (Korean: 케이팝; RR: Keipap; an abbreviation of "Korean popular music") is a form of popular music originating in South Korea. The music genre that the term is used to refer to colloquially emerged in the 1990s as a form of youth subculture, with Korean musicians taking influence from Western dance music, hip-hop, R&B and rock. Today, K-pop commonly refers to the musical output of teen idol acts, chiefly girl groups and boy bands, who emphasize visual appeal and performance. As a pop genre, K-pop is characterized by its melodic quality and cultural hybridity.

K-pop can trace its origins to "rap dance", a fusion of hip-hop, techno and rock popularized by the group Seo Taiji and Boys, whose experimentation helped to modernize South Korea's contemporary music scene in the early 1990s. Their popularity with teenagers incentivized the music industry to focus on this demographic, with Lee Soo-man of SM Entertainment developing the Korean idol system in the late 1990s and creating acts like H.O.T. and S.E.S., which marked the "first generation" of K-pop. By the early 2000s, TVXQ and BoA achieved success in Japan and gained traction for the genre overseas.

A boy band is a vocal group consisting of young male singers, usually in their teenage years or in their twenties at the time of formation. Generally, boy bands perform love songs marketed towards girls and young women. Many boy bands dance as well as sing, usually giving highly choreographed performances. South Korean boy bands usually also have designated rappers. Most boy band members do not play musical instruments, either in recording sessions or on stage. They are similar in concept to their counterparts known as girl groups.

Some boy bands are formed on their own, but most are created by talent managers or record producers who hold auditions. The popularity of boy bands has peaked three times: first in the 1960s to '70s, with e.g. the Jackson 5, the Bay City Rollers, and the Osmonds; the second time during the late 1980s, the 1990s and the 2000s, when acts such as New Kids on the Block, Take That, Backstreet Boys, Boyzone, NSYNC, Five, Westlife and Blue dominated global pop charts; and the latest time in the 2010s up to the present, with the emergence of groups such as Big Time Rush, the Wanted, One Direction, and K-pop acts such as BTS and Seventeen.

An all-female band is a musical group in popular music that is exclusively composed of female musicians. This is distinct from a girl group, in which the female members are solely vocalists, though this terminology is not universally followed. While all-male bands are common in many rock and pop scenes, all-female bands are less common.

The Spice Girls were a British girl group formed in 1994, consisting of Mel B ("Scary Spice"), Melanie C ("Sporty Spice"), Emma Bunton ("Baby Spice"), Geri Halliwell ("Ginger Spice"), and Victoria Beckham ("Posh Spice"). They have sold over 100 million records worldwide, making them the best-selling girl group of all time. With their "girl power" mantra, the Spice Girls redefined the girl group concept by targeting a young female fanbase. They led the teen pop resurgence of the 1990s, were a major part of the Cool Britannia era, and became popular culture icons of the decade.

The Spice Girls were formed by Heart Management, who held auditions to create a girl group to compete with the British boy bands popular at the time. After leaving Heart, the Spice Girls hired Simon Fuller as their manager and signed with Virgin Records. They released their debut single, "Wannabe", in 1996, which reached number one on the charts of 37 countries. Their debut album, Spice (1996), sold more than 23 million copies worldwide, becoming the best-selling album by a female group in history. It also produced three more number-one singles: "Say You'll Be There", "2 Become 1" and "Who Do You Think You Are"/"Mama". Their second album, Spiceworld (1997), sold more than 14 million copies worldwide. The Spice Girls achieved three number-one singles from the album with "Spice Up Your Life", "Too Much" and "Viva Forever". Both albums encapsulated the group's dance-pop style and message of female empowerment, with vocal and songwriting contributions shared equally by the members.