(Originally posted to travel.stackexchange.com)
A common theme I've noticed in many "big-beat" songs and the electronic genre, especially songs by British artists, is to use voice-samples of a particular American accent, or imitiate this accent if the music artist is doing their own vocals.
An example of it can be heard in this Underworld song "Push Downstairs" from time 1:01.
Other artists whose music I've heard similar, or the same, accent in include Fatboy Slim and, I think, the Chemical Brothers - but Underworld in particular are regular users of this accent (I note Underworld, Fatboy Slim, and the Chemical Brothers are all British big-beat/electronica music artists)
I have a personal mental association of the accent with 1970s Vegas culture: I visualize a thin (not overweight) MC at a mid-market casino or event wearing a 10-gallon hat and bola-tie and sideburns talking with this accent (looking like Bob from Bob's RV Roundup. This mental association might be from someone I saw on TV that spoke like this (Bob himself sounds almost similar, I note - but I wouldn't describe it as a "cowboy accent").
Having been to Vegas in person, and as a 4-year resident of the US West Coast, I can't say I've ever heard this accent spoken by a person in real-life.
So where is it from? Is it a real accent with a geographical or historical basis - or a manufactured accent like the Mid-Atlantic accent?