"This Must Be It" is the third single

Single (music)

In music, a single or record single is a type of release, typically a recording of fewer tracks than an LP or a CD. This can be released for sale to the public in a variety of different formats. In most cases, the single is a song that is released separately from an album, but it can still appear...

 from the Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 duo Röyksopp

Röyksopp

Röyksopp is a Norwegian electronic music duo from Tromsø, formed in 1998. Since their inception, the band's line-up has included Svein Berge and Torbjørn Brundtland....

's third album Junior. It features the vocals of Karin Dreijer Andersson

Karin Dreijer Andersson

Karin Elisabeth Dreijer Andersson , commonly known by her stage name Fever Ray, is the lead vocalist of the electronic duo The Knife, formed with her brother Olof Dreijer. Andersson was previously the vocalist and guitarist of the alternative rock band Honey Is Cool...

 (Fever Ray, The Knife

The Knife

The Knife are a Swedish electronic music duo from Gothenburg, formed in 1999. The group consists of siblings Karin Dreijer Andersson and Olof Dreijer, who together also run their own record company, Rabid Records. They first received international attention after their song "Heartbeats", covered by...

). The single has been released on November 2, 2009 as a digital download and 12″ vinyl.

This Must Be It was featured on the soundtrack of the 2011 movie Hall Pass

Hall pass

A hall pass is a pass or token used in American and Canadian public schools to show that a student has been authorized to be out of his/her classroom while lessons are in progress. They are commonly issued to students if they need to visit the Toilet, if they have been asked to run an errand for a...

.

Music video

The official music video directed by Swedish directors Filip and Andreas Nilsson

Andreas Nilsson

Andreas Nilsson is an artist and director based in Malmö, Sweden, best known for his contributions to the music videos of The Knife, Fever Ray, MGMT, Goldfrapp, José González, White Lies, Peter, Björn & John, Moby and Bright Eyes.-2010:...

 has been released online on September 28, 2009. The band's website describes the video as "a semi-biblical story that takes place in an all nude utopic hippy-world."

Remixes

1. "This Must Be It" (This Could Be Thin White Duke
   Stuart Price
   Stuart Price is a three time Grammy-winning British electronic musician, songwriter, and record producer whose remixing and production skills are in demand by artists including New Order, Madonna, Kylie Minogue, Take That, Missy Elliott, Scissor Sisters, The Killers, Pet Shop Boys, Brandon...
   
    Remix) – 7:01
2. "This Must Be It" (Apparat
   Apparat (musician)
   Apparat is a German electronic musician living in Berlin and was previously a co-owner of Shitkatapult records. Starting out with dance floor-oriented techno, he later started to create ambient music and more recently became "more interested in designing sounds than beats".In 2004, he appeared at...
   
    Remix) - 5:58
3. "This Must Be It" (Rex The Dog's K-Dart Remix) - 7:27
4. "This Must Be It" (T.B.S. Remix) - 3:40
5. "This Must Be It" (Maxime Dangles Remix) – 8:09
6. "This Must Be It" (Moguai
   Moguai
   Moguai , is a German DJ and EDM producer. He is best known for his 2002 hit "U Know Y", and his earlier hit "The Rock" which used a sample from the song "Top Billin'" by rap group Audio Two. Starting in early 2010, he became one of few people to release music on deadmau5's record label, mau5trap...
   
    Remix) - 7:36
7. "This Must Be It" (Danton Eeprom Remix) - 5:21
8. "This Must Be It" (Pete Herbert Remix) - 5:54
9. "This Must Be It" (LehtMoJoe
   LehtMoJoe
   -Career:LehtMoJoe's stage name combines the names of his favorite Dallas Stars hockey players during the late nineties, Jere Lehtinen, Mike Modano, and Joe Nieuwendyk....
   
    Remix) – 4:29
10. "This Must Be It" (Florian Meindl Remix) - 7:08