OK Go's album Oh No has a hidden track, which Wikipedia says is "a 35-minute track of singer Damian Kulash's girlfriend sleeping." Wikipedia has this bizarre information.
"9027 KM", which is not listed on the album sleeve, is a 35-minute track of singer Damian Kulash's girlfriend sleeping, included on the US version of the album. He says there is good reason for it, but as of now, fans do not know why, except for a discovery by sherib on the official OK GO forums, which showed that the distance between Los Angeles, California and Malmö, Sweden was 9027 Kilometers (KM). It has been rumored that the track was added to pad out the CD so that their label could not use the extra space to add DRM.