Acoustic music comprises music that solely or primarily uses instruments which produce sound through entirely acoustic means, as opposed to electric or electronic means. The retronym "acoustic music" appeared after the advent of electric instruments, such as the electric guitar, electric violin, electric organ and synthesizer.

Performers of acoustic music often increase the volume of their output using electronic amplifiers. However, these amplification devices remain separate from the amplified instrument and reproduce its natural sound accurately. Often a microphone is placed in front of an acoustic instrument which is then wired up to an amplifier.

Following the increasing popularity of the television show MTV Unplugged during the 1990s, acoustic (though in most cases still electrically amplified) performances by musical artists who do not usually rely on electronic instruments became colloquially referred to as "unplugged" performances.

Writing for Splendid, music reviewer Craig Conley suggests, "When music is labeled acoustic, unplugged, or unwired, the assumption seems to be that other types of music are cluttered by technology and overproduction and therefore aren't as pure."

Pierre David Guetta (7 November 1967), known professionally as David Guetta (French pronunciation: [daˌvid ɡɛˈta]), is a French house music producer and DJ. Originally a DJ at nightclubs during the 1980s and 1990s, he co-founded Gum Productions and released his first album, Just a Little More Love, in 2002. Later, he released Guetta Blaster (2004) and Pop Life (2007). His 2009 album One Love included the hit singles "When Love Takes Over" (featuring Kelly Rowland), "Gettin' Over You" (featuring Chris Willis, Fergie & LMFAO) and "Sexy Bitch" (featuring Akon), the last becoming a top five hit in the United States and all three reaching #1 in the United Kingdom, as well as another internationally known single called "Memories" featuring Kid Cudi which became a top five hit in many countries. Guetta has sold over three million albums and 15 million singles worldwide. He is currently one of the most sought-after music producers. As at 2012 David Guetta is the world's most popular DJ, claiming the #1 poll position of the DJ Mag 100 popularity poll.

John Roger Stephens (born December 28, 1978), better known by his stage name John Legend, is an American singer-songwriter and actor. He has won nine Grammy Awards, and in 2007, he received the special Starlight award from the Songwriters Hall of Fame.

Prior to the release of his debut album, Stephens' career gained momentum through a series of successful collaborations with multiple established artists. Stephens added his voice to those of other artists, assisting in them reaching chart-topper hits. He lent his voice to Kanye West's All of the Lights, on Slum Village's "Selfish" and Dilated Peoples' "This Way". Other artists included Jay-Z's "Encore", and he sang backing vocals on Alicia Keys' 2003 song "You Don't Know My Name" and Fort Minor's "High Road." Stephens played piano on Lauryn Hill's "Everything Is Everything."

Stephens was born on December 28, 1978, in Springfield, Ohio. He is the son of Phyllis, a seamstress, and John Mills, a factory worker and former National Guardsman. Throughout his childhood, Stephens was homeschooled on and off by his mother. At the age of four, he began playing the piano and at the age of seven, he performed with his church choir. When he was ten, his parents divorced, causing his mother to suffer a breakdown. At the age of 12, Stephens attended North High School, from which he graduated four years later. He graduated salutatorian.

Savannah Outen (born October 14, 1992 in Hillsboro, Oregon) is an American singer who gained popularity on YouTube. Outen began posting videos of herself singing on YouTube in March 2007 along with Angelika Vee and Esmee Denters. In 2010 she collaborated with Boyce Avenue on their sixth acoustic album, New Acoustic Sessions. She appeared in the 85th Annual Macy's Thanksgiving Day Parade on November 24, 2011.

She has also been asked to sing the National Anthem at many professional sports venues, including the Oakland Raiders, Los Angeles Dodgers, Anaheim Angels, Seattle Mariners, Seattle SuperSonics, Seattle Storm, and the Portland Beavers. From 2002 to 2006 she was a member of the Junior BlazerDancers dance group. In 2006, she won the youth talent contest at the Washington County Fair in her hometown.

In fall 2007, Keith Thomas of Levosia Entertainment signed Outen to a recording and management contract. Savannah's first single from the three demo CD released by Levosia Entertainment was "Goodbyes." That song drew comparisons to Carrie Underwood and Britney Spears from MTV's Pop Cultured. Outen's first video was a cover of the song "Listen" from the motion picture Dream Girls

Dash Berlin (born 8 November 1979) is a Dutch progressive-trance project created in 2007 in The Hague by Jeffrey Sutorius, Eelke Kalberg and Sebastiaan Molijn. The front man of the group is the DJ Jeffrey Sutorius a.k.a Dash Berlin . Kalberg and Molijn have been contributing to the international dance scene for over ten years, with award-winning and platinum-selling hits for dance acts such as Alice Deejay, Vengaboys, Candee Jay, Pronti & Kalmani and Solid Sessions . They also have been working together with DJ Sander Kleinenberg on classic tracks like “This Is Miami” and “The Fruit” and remixes for major artists such as Justin Timberlake ('Rock Your Body' Remix winning the award for 'Best Remix' at the Dance Star USA Awards), Janet Jackson, BT, Usher, N.E.R.D., Lenny Kravitz, Junkie XL, Röyksopp, Mylo, and Annie Lennox .

Dash Berlin was formed when Jeffrey Sutorius (born in November 1979 in The Hague, The Netherlands) and his close friends, Kalberg and Molijn teamed up in 2006. . Jeffrey Sutorius was a fan of electronic music from his high school days and in his late teens worked in a record store and became a collector of vinyl trance music. Inspired by pioneering figures such as Sven Vath, Oliver Lieb and Sander Kleinenberg, Sutorius began mixing and producing his own music. He started performing in the Dutch underground music scene in early '95 and teamed up with fellow producers and close friends Kalberg and Molijn to form Dash Berlin in 2006 .