The Pet Shop Boys--Neil Tennant and Chris Lowe--are arguably the most successful duo in the history of pop music. Three-time Brit Award winners and six-time Grammy nominees, they have sold more than 50 million records worldwide. Published to coincide with the fortieth anniversary of the release of "West End Girls"--the single that reached number one in the United Kingdom, United States, Canada, Finland, Hong Kong, Lebanon, Israel, New Zealand,...