Tesco, the United Kingdom’s largest mass merchant, is ramping up its music operations by rolling out CD sales to its petrol stations. U.K. dance band Faithless is to be the first and, for the time being, sole beneficiary of the month-long trial promotion with 420 U.K. Tesco petrol forecourts set to stock the veteran electronic act’s latest studio album. Bet they didn’t know that before they signed the deal.