'Darren' uses the bassline from Mr Oizo 'Flat Beat' and samples an 'awareness' radio advert for Operation Eagle Eye (a British anti street crime initiative from the late 90s) that was perpetually being played around the time.
'I Don't Smoke' samples an old comedy sketch from Marcus Brigstocke - the song was later commercially released and hit number 11 in the UK Singles Chart. The opening guitar samples from Skeewiff - The Thin Line. 'Skeewiff'
'Party People' samples Chad Jackson's 'Hear The Drummer (Get Wicked)'.