I vaguely remember this advert from about 2004 - an amusing TV commcercial for mobile phoe retailer Phones 4U featuring two beatnikky folk-singers driving around Britain in a VW camper van with a ridiculously huge  set of speakers on the roof.

What I hadn't realised was that this was the first big break of the Flight of the Conchords, New Zealand's fourth most popular guitar-based digi-bongo accapella-rap-funk-comedy folk duo. Fancy that!