Yes came out in March 2009, and it marked a proper return to form for Pet Shop Boys - their tenth studio album, and the one where they teamed up with pop production team Xenomania, best known for their work with Girls Aloud. After the slightly patchy Fundamental a few years earlier, this felt like Neil Tennant and Chris Lowe rediscovering how much fun they could have, and it ended up being their highest-charting album since Bilingual back in the mid-90s.

It's classic Pet Shop Boys at heart - witty, melodic, synth-driven pop - but with a real gloss and confidence to it thanks to Xenomania's production. There's lush orchestral flourishes courtesy of the London Metropolitan Orchestra sitting right alongside big, shiny dance-pop hooks, so it never feels one-note. The whole thing has this bittersweet, knowing quality that's always been the duo's trademark, but the tunes here are some of the most immediate they'd written in years, which makes it a much brighter, more danceable listen than a lot of their 2000s output.

Love etc is the obvious opener and highlight, all shuffling rhythm and instantly hummable chorus. Building a wall is a real standout too, sneaking some sharp social commentary into a track that sounds like pure euphoria on the dancefloor. King of Rome slows things down beautifully, one of their most affecting ballads in ages, while Legacy closes the album on a properly grand, orchestral note. It's the kind of record that just makes you feel good without dumbing anything down, and that balance of cleverness and pure pop pleasure is why it still holds up as one of their most purely enjoyable later albums to put on.