"Ghosts 'n' Stuff" is a song by Canadian electronic music producer deadmau5 with vocals performed by Australian singer-songwriter Rob Swire. It was first released as a standalone single on 25 November 2008 and later appeared on deadmau5's fourth studio album For Lack of a Better Name (2009). The song's refrain is a reinterpretation of Chris Isaak's song "Wicked Game". As of 2016, the song has been a part of Pendulum's live setlist.

The original version of "Ghosts 'n' Stuff" was made in 2004, and Joel Zimmerman said that it "ended up going through at least 10 revisions". Zimmerman and Rob Swire had been coincidentally meeting each other backstage at various festivals and agreed to collaborate. The song was made originally specifically for Pete Tong's BBC Radio 1 Essential Selection show on 10 October 2008. deadmau5 was a guest on the show along with Steve Angello (the two, with Tong, were playing a live set in Manchester, England on that night). In the week leading up to the show, Tong requested that deadmau5 create something new for his appearance for Tong's show. At the 81:03 mark of the broadcast, deadmau5 stated that the song was originally titled "Hotel" because he made it for Tong's show while staying in his hotel. He also stated that the song was only "just now" finished and that he was now calling it "Ghosts 'n' Stuff". deadmau5 later debuted this song to a live audience at the HARD Haunted Mansion 2008 in Los Angeles, CA.

The "hard intro" version of one B-side of the single, "Moar Ghosts 'n' Stuff" (which appears on the continuous mix version of For Lack of a Better Name) contains a vocal sample from the 1957 film The Brain from Planet Arous; "After I'm gone, your Earth will be free to live out its miserable span of existence, as one of my satellites, and that's how it's going to be...". It also contains a sample from the funeral march by Chopin. The unmixed version released on 20 October 2009 replaces this version with the original mix, which excludes the vocal sample and the funeral march intro.

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