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Alexandra Ashley Hughes (born 31 July 1985), known by her stage name Allie X, is a Canadian singer, songwriter and visual artist. She began her career as an indie pop artist in Toronto in the mid-2000s, playing with local bands and writing and recording a handful of self-released albums.

Allison Moorer (born June 21, 1972) is an American singer/songwriter.

Allyson Brooke Hernandez (born July 7, 1993) is an American singer. She rose to prominence as part of the girl group Fifth Harmony. Brooke established herself in 2017 as a solo artist.

Alma-Sofia Miettinen (born 17 January 1996), known professionally as Alma (stylised in all caps), is a Finnish singer and songwriter.

Alma Elizabeth Deutscher (born February 2005 in Basingstoke) is an English composer, pianist and violinist. At age five, she composed her first piano sonata. At age seven, she completed a short opera The Sweeper of Dreams. Aged nine, she wrote a concerto for violin and orchestra. At the age of ten she wrote her first full-length opera, Cinderella.

Egbert Nathaniel Dawkins III (born January 7, 1979), known professionally as Aloe Blacc, is an American singer, songwriter, record producer, and philanthropist.

Aloha from Hell was a German rock band. They won a competition in the German magazine Bravo. After the win they released "Don't Gimme That." Their first album, No More Days to Waste, sold more than 200,000 copies.

Alpha Rev is an American alternative rock band from Austin, Texas, fronted by Casey McPherson (formerly of Endochine). McPherson remains the group's only consistent member, although historically the core members have also included Zak Loy on lead guitar, Brian Batch on violin and backing vocals, and Dave Wiley on cello.

Alphabeat is a Danish pop band from Silkeborg, fronted by singers Stine Bramsen and Anders Stig Gehrt Nielsen. Their single "Fascination" was a major hit in Denmark during the summer of 2007, as well as the United Kingdom in 2008.

Alt-J are an English indie rock band formed in 2007 in Leeds, by Joe Newman (guitar/lead vocals), Thom Sonny Green (drums), Gus Unger-Hamilton (keyboards/vocals) and Gwil Sainsbury (guitar/bass).

Alter Bridge is an American rock band from Orlando, Florida. The band was formed in 2004 by vocalist/rhythm guitarist Myles Kennedy, lead guitarist Mark Tremonti, bassist Brian Marshall and drummer Scott Phillips.

Altered Images were an early 1980s Scottish new wave/post-punk band. Fronted by singer Clare Grogan, the band branched into mainstream pop music, having six UK top 40 hit singles and three top 30 albums between 1981 and 1983.