"Cold Brains" is a single by Beck, on his album Mutations. It was released in Australia as an exclusive Tour EP. Three of the B-Sides, "One Of These Days", "Diamond In The Sleaze" and "Electric Music And The Summer People" had previously been Japanese exclusives, and as such this EP became a very popular import, especially as those tracks have still not been released officially in the UK, Europe or US as of 2014. The single was intended to be released in the US with a different track listing, but only a promotional version was produced.