The lead vocalist is the member of a band who sings the main solo vocal portions of a song. They may also play one or more instruments. Lead vocalists are sometimes referred to as the frontman or frontwoman, and as such, are usually believed to be the "leader" of the groups they perform in (though this is not necessarily true), often the spokespersons in interviews and before the public. On some occasions, the frontman of the band is someone other than the lead vocalist (e.g. Rainbow, Manfred Mann, The Dave Clark Five and AC/DC.)

In certain types of music, notably Soul and Motown, there is a line-up of a lead vocalist with a named group of backing vocalists (Gladys Knight & the Pips, Smokey Robinson & the Miracles). Such line-ups can be very fluid, with both the lead vocalist and the backing group pursuing independent careers; and frequent personnel changes are not uncommon.

Some rock groups, such as The Beatles, Linkin Park, Hollywood Undead, Eagles, Gomez, Pink Floyd, The Beach Boys, KISS, Blink-182, Anti-Flag, 311, 10cc, The Band, Zebrahead, Atreyu, Mastodon, New Politics, Mushroomhead, Alkaline Trio, Lacuna Coil, Flobots, Slightly Stoopid, Crazy Town, Hüsker Dü, Set Your Goals, Four Year Strong, Great Big Sea, Just Surrender, They Might Be Giants, The Monkees, Squirrel Nut Zippers, and Barenaked Ladies have or had more than one featured vocalist, making it difficult to establish a single "lead singer" or "front man."

Britney Jean Spears (born December 2, 1981) is an American recording artist and entertainer. Born in McComb, Mississippi, and raised in Kentwood, Louisiana, Spears began performing as a child, landing acting roles in stage productions and television shows. She signed with Jive Records in 1997 and released her debut album ...Baby One More Time in 1999, which became the best-selling album by a teenage solo artist. During her first decade in the music industry, she became a prominent figure in mainstream popular music and popular culture, followed by a much-publicized personal life. Her first two albums established her as a pop icon and broke sales records, while title tracks "...Baby One More Time" and "Oops!... I Did It Again" became international number-one hits. Spears was credited with influencing the revival of teen pop during the late 1990s, and became the 'best-selling teen aged artist of all time' before she turned 20, garnering her the honorific title of "Princess of Pop".

Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter and occasional actress. Raised in Wyomissing, Pennsylvania, Swift moved to Nashville, Tennessee at the age of fourteen to pursue a career in country music. She signed to the independent label Big Machine Records and became the youngest songwriter ever hired by the Sony/ATV Music publishing house. The release of Swift's self-titled debut album in 2006 established her as a country music star. "Our Song", her third single, made her the youngest sole writer and singer of a number one song on the country chart. She received a Best New Artist nomination at the 50th Grammy Awards.

Swift's second album, Fearless, was released in late 2008. Buoyed by the chart success of the singles "Love Story" and "You Belong with Me", Fearless attracted a crossover audience and became the top-selling album of 2009. The record won four Grammy Awards, with Swift becoming the youngest ever Album of the Year winner. Fearless also received Album of the Year plaudits at the American Music Awards, Academy of Country Music Awards and Country Music Association Awards, making it the most awarded album in country music history. In 2010, Swift released her third album, Speak Now, which sold over one million copies in its first week. She then embarked on the 111-date Speak Now World Tour, which was attended by over 1.6 million fans and has become one of the highest-grossing concert tours of all time. The album's third single, "Mean", won two Grammy Awards for Best Country Song and Best Country Solo Performance. Swift is currently recording her fourth studio album, due for release in the fall of 2012.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.

The Prodigy are an English electronic dance music group formed by Liam Howlett in 1990 in Braintree, Essex. Along with Fatboy Slim, The Chemical Brothers, and other acts, The Prodigy have been credited as pioneers of the big beat genre, which achieved mainstream popularity in the 1990s and 2000s. They have sold over 25 million records worldwide. The group has won numerous music awards throughout their career, including two Brit Awards—winning Best British Dance Act twice, three MTV Video Music Awards, two Kerrang! Awards, five MTV Europe Music Awards, and have twice been nominated for Grammy Awards.

The group's brand of music makes use of various styles ranging from rave, hardcore techno, industrial, and breakbeat in the early 1990s to big beat and electronic rock with punk vocal elements in later times. The current members include Liam Howlett (keyboardist and composer), Keith Flint (dancer and vocalist), and Maxim (MC and vocalist). Leeroy Thornhill (dancer and very rarely a live keyboardist) was a member of the band from 1990 to 2000, as was a female dancer and vocalist called Sharky who left the group during their early period. The Prodigy first emerged on the underground rave scene in the early 1990s, and have since then achieved immense popularity and worldwide renown.