October is the second album by Irish rock band U2, released in 1981. The album featured spiritual themes, inspired by Bono, The Edge, and Larry Mullen, Jr.'s memberships in a Christian group called the "Shalom Fellowship", which led them to question the relationship between the Christian faith and the rock and roll lifestyle. The album received mixed reviews and limited radio play.

After completing their Boy Tour in February 1981, U2 began to write new material. ("Fire" had already been recorded at Compass Point Studios in the Bahamas while U2 took a break from the Boy Tour.) They wrote part of October during an extended sound check at First Avenue in Minneapolis. The band entered the studio in July 1981 to record October, but the album's recording sessions were complicated when the briefcase containing Bono's lyrics was stolen by fans after a show in Portland, Oregon. The band already booked studio time through the end of August and thus had to continue recording in spite of this, even improvising lyrics on some songs. Bono said of the recording process of October, "I remember the pressure it was made under, I remember writing lyrics on the microphone, and at £50 an hour, that's quite a pressure. Lillywhite was pacing up and down the studio... he coped really well. And the ironic thing about October is that there's a sort of peace about the album, even though it was recorded under that pressure. A lot of people found October hard to accept at first, I mean, I used the word 'rejoice' precisely because I knew people have a mental block against it. It's a powerful word, it's lovely to say. It's implying more than 'get up and dance, baby.' I think October goes into areas that most rock 'n' roll bands ignore. When I listen to the album, something like 'Tomorrow,' it actually moves me." The briefcase was eventually recovered in October 2004, and Bono greeted its return as "an act of grace".

An album may be understood as a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution, however the concept is found in printed music dating into the early nineteenth century in works by composers such as Schumann and Mendelssohn. The word derives from the Latin word for list.

Today, with the vinyl record no longer being used as the primary form of distribution, the term "album" can still be applied to any sound recording collection, such as those on compact disc, MiniDisc, Compact audio cassette, and digital or MP3 albums.Cover art is also considered an integral part of the album. Many albums also come with liner notes and inserts giving background information or analysis of the recording, reprinted lyrics, images of the performers, or additional artwork and text. These are now often found in the form of CD booklets.

Vinyl LP records have two sides, each comprising one half of the album. If a pop or rock album contained tracks released separately as commercial singles, these were often traditionally placed in particular positions on the album. A common configuration was to have the album led off by the second and third singles, followed by a ballad. The first single would lead off side 2. In the past many singles (such as the Beatles' "Hey Jude" and Bob Dylan's "Positively 4th Street") did not appear on albums, but others (such as the Beatles' "Come Together" and Dylan's "Like a Rolling Stone") were part of an album released concurrently. Today, many commercial albums of music tracks feature one or more singles, which are released separately to radio, TV or the Internet as a way of promoting the album. Albums have also been issued that are compilations of older tracks not originally released together, such as singles not originally found on albums, b-sides of singles, or unfinished "demo" recordings.

Justin Steward Furstenfeld (born December 14, 1975 in Houston, Texas) is a record producer, artist, author, and the lead singer, guitarist, lyricist and frontman of the rock band Blue October.

When not touring with his band, Furstenfeld resides in San Marcos, Texas. He is the brother of Blue October drummer Jeremy Furstenfeld. Justin Furstenfeld has battled with Bipolar Disorder with Psychotic tendencies through most of his life and anxiety issues as well.

Growing up too, Furstenfeld listening to hip-hop, rock, country, dance; his favorite artists included Marvin Gaye, The Smiths, Red House Painters and Pink Floyd. His first musical memory was Roy Orbison's ballad, "Crying".

During his high school years at Houston's prestigious High School for the Performing and Visual Arts (HSPVA), he formed a band The Last Wish, which he played in from the age of 13 until 1995. When performing solo, Furstenfeld uses the moniker 5591;, the number 5591 being his patient number when he was admitted to a mental institution following a breakup with his then-girlfriend Amanda. He tells this story in the confessionals on the Argue With a Tree DVD (found in the Special Features).

Neil Percival Young,OC,OM (born November 12, 1945) is a Canadian singer-songwriter who is widely regarded as one of the most influential musicians of his generation.

Young began performing as a solo artist in Canada in 1960, before moving to California in 1966, where he co-founded the band Buffalo Springfield along with Stephen Stills and Richie Furay, and later joined Crosby, Stills & Nash as a fourth member in 1969. He forged a successful and acclaimed solo career, releasing his first album in 1968; his career has since spanned over 40 years and 34 studio albums, with a continual and uncompromising exploration of musical styles. The Rock and Roll Hall of Fame website describes Young as "one of rock and roll’s greatest songwriters and performers". He has been inducted into the Hall of Fame twice: first as a solo artist in 1995, and second as a member of Buffalo Springfield in 1997.

Young's work is characterized by his distinctive guitar work, deeply personal lyrics and signature alto or high tenor singing voice. Although he accompanies himself on several different instruments, including piano and harmonica, his idiosyncratic electric and clawhammer acoustic guitar playing are the defining characteristics of a varyingly ragged and melodic sound. While Young has experimented with differing music styles, including swing and electronic music throughout a varied career, his best known work usually falls into two primary styles: acoustic (folk and country rock) and electric (amplified hard rock, very often in collaboration with the band Crazy Horse). Young has also adopted elements from newer styles such as alternative rock and grunge. His influence on the latter caused some to dub him the "Godfather of Grunge".

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".