"Blue Room" is a single by The Orb. It was released on 8 June 1992 on Big Life Records. Chart Information Network, who compiled the UK singles chart, had recently extended the permissible playing time of a chart-eligible single from 25 minutes to 40 minutes. The Orb thus decided to record a 39:57 version of "Blue Room" for a special release. "Blue Room" is the longest single to ever reach the UK charts. "Blue Room" entered the charts at position twelve and peaked at number eight. An edited version appears on the album U.F.Orb. The full version features a number of samples, including a small bit of the beginning of the "Mysterious Traveller" by Weather Report and a damaged portion of "Happy Birthday To You" by Marilyn Monroe at the end. The Orb caused controversy by appearing on Top of the Pops to promote the single. Instead of performing, Alex Paterson and Kris Weston played chess. The performance had a profound impact on Robbie Williams who later declared "that Top of the Pops changed my life".

...
Wikipedia