Think Tank is the seventh studio album by the English rock band Blur, released on 5 May 2003. Continuing the jam-based studio constructions of the group's previous album, 13 (1999), the album expanded on the use of sampled rhythm loops and brooding, heavy electronic sounds. There are also heavy influences from dance music, hip hop, dub, jazz, and African music, an indication of songwriter Damon Albarn's expanding musical interests.

Recording sessions started in November 2001, taking place in London, Morocco and Devon, and finished a year later. The album's primary producer was Ben Hillier with additional production by Norman Cook (Fatboy Slim), and William Orbit. At the start of the sessions, guitarist Graham Coxon had been in rehab for alcoholism, so was not present. Initially unaware of how long Coxon would be in rehab for, Albarn, James and Rowntree decided to start work in the studio without Coxon.

After he re-joined, relationships between him and the other members became strained. After initial recording sessions, Coxon left, leaving little of his presence on the finished album. This is the only Blur album to not feature Coxon as a full-time member; he reunited with Damon Albarn in 2008, resulting in Blur starting to play live again in 2009, and returned to the band for their next album The Magic Whip (2015).

Think Tank is a loose concept album, which Albarn has stated is about "love and politics". Albarn, a pacifist, had spoken out against the invasion of Afghanistan and, after Western nations threatened to invade Iraq, took part in the widespread protests against the war. Anti-war themes are recurrent in the album as well as in associated artwork and promotional videos.

After leaking onto the internet in March, Think Tank was released on 5 May 2003 and entered the UK Albums Chart at number one, making it Blur's fifth consecutive studio album to reach the top spot. The album was later certified Gold. Think Tank also reached the top 20 in many other countries, including Austria, Switzerland, Germany, Norway and Japan. It was their highest charting album in the United States at the time, reaching number 56 on the Billboard 200. The album produced three singles, which charted at number 5, number 18 and number 22 respectively on the UK singles chart. After the album was released, Blur announced a world tour with Simon Tong filling in for Coxon.

Background Although Blur had been associated with the Britpop movement, they had experimented with different musical styles more recently, beginning with Blur (1997) which had been influenced by indie rock bands under the suggestion of guitarist Graham Coxon. Since the mid to late 1990s, Blur's members had been working on other projects as well as Blur: Albarn had co-created Gorillaz, a virtual band, in 1998 with comic artist Jamie Hewlett whom Albarn had met through Coxon. Gorillaz' 2001 debut was financially successful and received critical acclaim. Since composing the Blur song, "You're So Great", Coxon had started a solo career and as of 2001 had released three solo albums. The members' differing musical interests had alienated some of the band members, with Coxon explaining, "we're all very concerned for each other and we do genuinely like each other an awful lot. Because we're into so much different stuff, it becomes daunting." Nevertheless, Coxon, along with Alex James and Dave Rowntree were keen for a new album, whilst Albarn was more reluctant.

Blur's prior album, 13, had made heavy use of experimental and electronic music with the guidance of producer William Orbit. Despite the success of the album and its associated singles, the overall sound of the album had been deemed as "deliberately uncommercial" compared to their previous efforts. Despite the broader musical landscaping which Blur were engaging in, Albarn said in a January 2001 interview that he wanted to make a more accessible album again, stating "I'm trying to go back to the kind of songwriting aesthetic I had on (hit album) Parklife. They won't be arranged in the same way at all – they'll just be songs that are accessible to the public." He also explained his reasoning for this approach, stating that "it's too complicated being anything other than mainstream with Blur. That's where it belongs. We still feel that the mainstream in Britain is not represented well enough by intelligent musicians."

After the September 11 attacks, a series of controversial military campaigns were launched, known as the war on terror. In November 2001, shortly after the Invasion of Afghanistan, the MTV Europe Music Awards were held in Frankfurt, where Gorillaz won an award for Best Dance Act. As Albarn and Hewlett walked onto stage to make a speech, Albarn sported a T-shirt with the Campaign for Nuclear Disarmament logo on it. In Albarn's speech, he said "So, fuck the music. Listen. See this symbol here, [pointing to the t-shirt] this the symbol for the Campaign for Nuclear Disarmament. Bombing one of the poorest countries in the world is wrong. You've got a voice and you have got to do what you can about it, alright?"

In 2002, Iraq was under threat of invasion from western nations. Opposition from the public led to protests being organised by a number of organisations. Albarn, who has described himself as being anti-war, spoke out against the invasion, citing the lack of democratic process as an issue. Anti-war views had been shared with Albarn's parents and grandparents. His grandfather, Edward Albarn, had died after going on a hunger strike the previous year. Albarn has labelled his grandfather, father, and himself as conscientious objectors.

Albarn teamed up with Robert "3D" Del Naja of Massive Attack and various campaigns to raise awareness of the potential dangers of the UK's involvement in the war. Albarn was due to speak in Hyde Park on the rally in March 2003 when a million people took to the streets of London in protest at the imminent war. In the event, he was too emotional to deliver his speech.

Recording

Recording sessions for Think Tank started in November 2001 at Albarn's 13 Studio in London. Albarn, James and Rowntree had come to the studio along with Ben Hillier, who explained that "there was tension to begin with. Alex had made some belittling comment about Gorillaz in the press, but there was a 'fuck you' and a 'fuck you' and it was all mates again but for the fact that Graham was missing". During 2001, Coxon had been battling alcoholism and depression, and was unable to attend the initial recording session due to being in rehabilitation. Despite Coxon's absence, the rest of the band decided to start recording without him.

By January 2002, the rest of the band were mainly recording demos that Albarn had started on a four-track and subsequently transferred into Logic with 13's in-house engineers Tom Girling, Jason Cox and assistant, James Dring. Coxon rejoined the rest of the band for recording sessions in February and May 2002, with the foreknowledge that it would be "tense in the studio". Coxon spent, what he described as "awkward afternoons", contributing on the track "Battery in Your Leg", and non-album B-sides "The Outsider", "Morricone" and "Some Glad Morning".

It was clear that during Coxon's departure, the sound and musical direction was not to Coxon's taste, and he no longer had a justifiable place in the band. Additionally, Coxon was advised by health professionals to avoid touring, which would naturally leave him in a more vulnerable position mentally. This was not received well with the band, or their record label, due to touring being a major part of promoting and selling a record.

In what has been described as "miscommunication", Blur's manager was directed to tell Coxon to not return to the studio for an indefinite time, prompting Coxon to leave the band after these few recording sessions. The remaining members of Blur decided to carry on recording alone, Albarn stating that "the spirit of Blur was more important than the individuals".

In June, the band went back into the studio, doing "tracking, overdubs and reworking what we'd already done, and all the time new songs would be popping up – I think we had 28 of them at one point." Albarn desired to have multiple producers involved in the album, wanting to get a "name producer" involved. Albarn had previously been in talks with Norman Cook, commonly known as Fatboy Slim, to be involved on the record, although he originally wanted to contribute "just feedback and nothing else". Albarn eventually invited him to try and work with the band. Hillier and the band also spent time working with other producers, including the Dust Brothers, whilst the Neptunes were also reported to be involved at one point.

In August, the remaining members of Blur, along with Hillier, travelled to Morocco. James released a statement on the band's website saying "I suppose the idea at the bottom of this is to escape from whatever ghetto we're in and free ourselves by going somewhere new and exciting." The band settled at Marrakesh where they equipped an old barn with a studio. Albarn claimed that most of the album's lyrics were written "under a cypress tree in Morocco". The sessions in Marrakesh produced "Crazy Beat", "Gene by Gene", and "Moroccan Peoples Revolutionary Bowls Club". The vocal sessions took place at this time. While in Morocco, Albarn wrote a song about Cook and his partner, Zoë Ball, who were having troubles with their relationship. The song started out as a jam session, eventually evolving into "Put It Back Together", which ended up on Fatboy Slim's fourth studio album, Palookaville, which was released in October 2004. After the band came back from Morocco, the remaining sessions took place in a barn on National Trust land in Devon.Q, May 2003

William Orbit, who was the main producer on 13 was also involved in the album's production, with Hillier stating that "we sent a couple of tunes to William to work on in his studio, working round the clock in a computer environment the way he does. He's a nutter and works all night. That was quite an interesting juxtaposition, us doing office hours then going to see William after work, just as he was getting up!" Of Orbit's productions, "Sweet Song" ended up on the album. Coxon's absence also bolstered the role of Alex James and Dave Rowntree who provided backing vocals throughout the album. Rowntree also played the electric guitar on "On the Way to the Club" and provided a rap on a demo version of "Sweet Song". A Moroccan orchestra is featured on the lead single, "Out of Time".

Musical style

Despite Albarn stating that he originally wanted to return to their more commercial sound, Think Tank continues the jam-based studio constructions of previous album 13. The album expanded on the use of sampled rhythm loops and brooding, heavy electronic sounds. Almost entirely written by Albarn, Think Tank placed more emphasis on lush backing vocals, simple acoustic guitar, drums, bass guitar, and a variety of other instruments.

"We knew we had to come back with the best thing we'd ever done," observed James. "I think it is. It's next level shit!"

Like many of Blur's previous albums, Think Tank is a loose concept album. Albarn has stated that it is an album about "love and politics", stating that "[Unease] forces people to value what they've got. And that, hopefully, will pay dividends and help change the world to a better place. Hopefully. Touch wood." Albarn also stated that the album is about "what are you supposed to do as an artist other than express what is going on around you." Some of the songs are concerned with a sense of paranoia and alienation in British club culture. Damon also cited punk rock music, particularly the Clash, as an inspiration.