It's Not Me, It's You is the second studio album by English singer Lily Allen, released on 4 February 2009 by Regal Recordings and Parlophone.

It was produced and co-written by Greg Kurstin, with whom Allen had previously worked on her debut studio album, Alright, Still (2006).

The album represents a departure from the ska and reggae influences of its predecessor, incorporating electropop with elements of jazz.

Upon release, It's Not Me, It's You received positive reviews from critics, praising Allen's "sharp tongue" and calling the album "wonderful".

Allen performed on a variety of television programs to promote the album, including Jimmy Kimmel Live!

[12] That same month, she posted two demo tracks on her Myspace page and planned to release a mixtape to give her fans an idea of what the new direction was.

[13][14][15][16] A year later, she described the album's sound in the April 2009 issue of Teen Vogue, saying it was "quite fun" and had "loads of different types of music—country, jazz, and electronic."

"[18] Allen recorded most of the album at Eagle Rock Studios in Los Angeles with producer Greg Kurstin of the band The Bird and the Bee.

[18] Of the songwriting process, she said, "Greg builds the chords up and I just sing along and make up the words and then once you've got the bare song, we decide which way we're gonna go with the production.

[25] A third, politically charged clip was later posted in June 2008, with the titles "Guess Who Batman" and later "Get with the Brogram", finally appearing as "GWB".

Despite both working titles sharing initials with George W. Bush, Allen wrote that "this song is not a direct attack at anyone, it was originally written about the BNP in the UK but then I felt this issue has become relevant pretty much everywhere, we are the youth, we can make coolness for our future, its up to us.

[27] In October 2008, Allen posted another song titled "Everyone's At It" which was later announced as the album's lead single however, "The Fear" was chosen instead.

While being invited to Scott Mills' BBC Radio 1 show, Allen talked about her struggles with the paparazzi and also premiered "The Fear" by performing it live.

Allen arrived on stage wearing a black corset dress and sitting on a rocket hoisted in the air.

Allen performed songs off the album and old hits on Radio 1's Big Weekend and at the London nightclub G-A-Y.

"Not Fair" was played by DJ Ken Bruce on BBC Radio 2 days before the release of the album and was heavily edited to 2:04, removing the line "Oh I lie here in the wet patch in the middle of the bed, I'm feeling pretty damn hard done by, I've spent ages giving head".

[39] "Back to the Start" was released on seven-inch vinyl exclusively for Record Store Day on 17 April 2010, in a limited run of 1,000 copies.

"[1] James Skinner of Drowned in Sound echoed these sentiments, stating that "when Lily Allen is at the top of her game, she is the (im)perfect pop star for our times" in a generally positive review.

[55] Clash concluded, "Britain's mouthy pop idol returns triumphantly and with the brawny guts to stick with what she knows best", after commenting that Allen "probably has enough personal ammunition to fuel a ten-year career of brutally autobiographical albums".

[56] Mikael Wood of Billboard stated the album is "hardly the grown-up buzz-kill it might have been", thanks to "Allen's still-sharp lyrical wit and an exceedingly crafty production job by Greg Kurstin."

McCormick also praised the lead single as "superb" and "an ironic declaration of celebrity superficiality set to a pulsing, sleekly modern electro dance backing.

"[59] Allison Franks of Consequence of Sound wrote, "Known for her upbeat melodies and rhymes, which are often comical, introspective and set to bouncy back beats, Allen decided to try something a little fresh on her next effort.

[61] It was certified quadruple platinum by the British Phonographic Industry (BPI) on 24 November 2023,[62] and by June 2018, it had sold 1,070,340 copies in the United Kingdom.

[68] The Australian Recording Industry Association (ARIA) certified the album four times platinum for shipments of over 280,000 copies.