To record the album, she enlisted her previous collaborators, such as Billy Mann, Butch Walker, Max Martin and MuchoPsycho, while also involving new music producers and songwriters, such as Danja, Jimmy Harry, Tony Kanal and Eg White.

The lead single, "So What" became a huge commercial success, topping the US Billboard Hot 100, additionally to twelve more countries, including the UK, Canada and Australia.

"Sober" and "Please Don't Leave Me" also became successful, entering the top ten in many countries, additionally peaking at numbers fifteen and seventeen on the Hot 100 respectively.

[2] After months of speculation, Pink announced in February 2008 that she and her husband, Carey Hart, had separated.

"[7] Pink traveled internationally to write and record the album, working with Eg White in London and with Max Martin in Stockholm.

[9] Originally, Pink wanted to call her album Heartbreak Is a Motherfucker, but her record label declined because of a fear that offensive language would affect sales.

Much of the album's subject matter alludes to the fact that Moore had recently separated from her husband, Carey Hart.

In "Glitter in the Air", Pink asks many questions such as, "Have you ever looked fear in the face and said I just don't care?

"[8] The track "Sober", which is the album's second single, was written by Pink at a party hosted at her home, where everyone was drunk or drinking except for her, and she wanted them all to leave.

The fourth leg consisted of 3 months around Europe, starting in Dublin, Ireland on October 14 and finishing December 20 in Hannover, Germany.

The first show was held in Seattle in September 2009 and twelve dates later the US leg of the tour ended in New York City.

[24] With the release of the album's Tour Edition, a live album was released featuring live performances of twelve songs, plus "Push You Away", a studio track which was previously unreleased; the song is also included on The Tour Edition.

The song was written by Pink, in collaboration with Max Martin and Shellback,[30] about her separation with Carey Hart.

[31] It has become Pink's biggest success to that date, peaking at number one in eleven countries around the world, including the US, where it became her first solo single and second overall, after "Lady Marmelade" in 2001 to top the Billboard Hot 100.

[32] Song's music video, directed by Dave Meyers, premiered on August 22, and featuring Hart's cameo.

[32] The song's video, directed by Jonas Åkerlund, premiered November 25 on Pink's official YouTube channel.

[42] It also became successful, reaching top ten in several Europe countries, also peaking at number eight in Canada,[32] twelve in the UK,[43] and seventeen in the US.

[32] Its music video was directed by Meyers, and draws influences from the 1990 Stephen King-based film Misery, as well as other similar thrillers, including Cujo, The Shining and What Ever Happened to Baby Jane?.

It utilizes both the horror/thriller genre, while also being interpretable as a dark comedy, which led her to release the censored version of the video.

"Bad Influence" was released as the fourth single in Australia, promoting the arrival of the Australian leg of the Funhouse Tour.

[44][45] The song became a huge success in Oceania despite the absence of a music video, reaching the top ten in both Australia and New Zealand.

[50] In April 2011 it was released in Netherlands, to promote Pink's compilation album Greatest Hits...

[52] The music video premiered on June 20, 2009, in the United Kingdom on 4music,[53] featuring Tony Kanal of No Doubt, also the co-writer and the producer of the song, playing a piano.

[32] "Glitter in the Air" was immediately delivered to radio as a new single by Jive Records after she performed it at 52nd Grammy Awards, before the show broadcast was even over.

[55] On the February 20, 2010, issue of Billboard, the song debuted on the Hot 100 at number 18,[56] Pink's second highest debut since "So What", as well as her seventh entry from Funhouse, which gives the song credit for raising the sales of the album and pulling it back to the Top 20 on the Billboard 200.

[62] Sydney's The Daily Telegraph gave it 4.5 stars, writing, "The record is a balanced blend of upbeat pop gems and midtempo ballads [...] The power of Pink's pop lies in the clever juxtaposition of heartfelt honesty about her life with anthematic choruses and irresistible melodies tailormade to be screamed out by her fans.

"[73] Other positive reviews were published by US Magazine, which gave the album four stars, saying, "The rebellious Grammy winner again fuses unrestrained lyrics with perfect pop-rock hooks on her electrifying fifth CD.

Rolling Stone stated, "Pink has shown more personality before, and some cuts, including the goopy ballad "I Don't Believe You", make her sound like just another big-voiced chart-buster.

Funhouse spent nine consecutive weeks at number one and has been certified 12× platinum by the Australian Recording Industry Association for 840,000 copies sold.

[82] Funhouse became her first number-one album in the UK, entering at number one on November 2, 2008, and has been certified 4× Platinum by the British Phonographic Industry for selling over 1,200,000 copies.