In 1987, Pet Shop Boys released their second album Actually, which became another huge hit album for the duo, debuting at the #2 spot on the UK Albums Chart upon it's release. The album was produced by Julian Mendelsohn, Stephen Hague, Shep Pettibone, Andy Richards and Pet Shop Boys. This period saw Pet Shop Boys reach new critical and commercial heights with three #1 singles, "It's A Sin",  Heart", and 'What Have I Done To Deserve This', their #2 single featuring Dusty Springfield. As Neil Tennant puts it: "I felt at this time that we had the secret of contemporary pop music, that we knew what was required."