In a slightly sketchy part of north London, a cockney blonde whom we'll call Myrtle smokes a cigarette in the driveway of the plain white-fronted former bakery that serves as recording studio, office, and grown-up clubhouse for the members of one of the worlds' biggest bands, Coldplay. Myrtle says she works at the office next door, and when asked if the guys are good neighbors, she hedges.