If you spend a day glued to the radio, there is a very big chance you will hear, at the very least, one song that Max Martin has been involved with. The Swedish writer and producer – real name Martin Sandberg – is behind some of the biggest hits the pop universe has ever seen. And now Max's magic is set to take over London's West End, as a new musical opens in November. & Juliet retells one of the most famous love stories in the world (Romeo & Juliet in case you hadn't joined the dots yet), using his biggest hits from the likes of Britney Spears, Katy Perry and more. As we await curtain-up, we delve deeper to give you a full Top 75 of my favorite tunes he's written or produced.