Pet Shop Boys are an English synth-pop duo, formed in London in 1981 and consisting of Neil Tennant and Chris Lowe. Pet Shop Boys have sold more than 100 million records worldwide, and were listed as the most successful duo in UK music history in the 1999 edition of The Guinness Book of Records. Three-time Brit Award winners and six-time Grammy nominees, since 1984 they have achieved 42 Top 30 singles, 22 of them Top 10 hits in the UK Singles Chart, including four UK number ones: “West End Girls”, “It’s a Sin”, a synthpop version of “Always on My Mind”, and “Heart”. Other hit songs include a cover of “Go West”, and their own “Opportunities”, and “What Have I Done to Deserve This?” in a duet with Dusty Springfield. With five US top ten singles in the 1980s, they are associated with the Second British Invasion.