The deal includes a joint venture with Paul Lisberg of Loudmouth Music, and the producers of SiX, Kenny Wax, Global Musicals and George Stiles, for all the songs included in the show.
Additionally, the writers of the show Toby Marlow and Lucy Moss (pictured) have signed a separate futures deal with the publisher.
Following successful runs across the US and Canada, SiX is set to open on Broadway at the Brooks Atkinson Theater in February 2020.
The musical imagines Henry VIII’s wives taking part in a singing competition, where they perform contemporary songs that document their doomed marriages to the king, and is performed by an all-female cast and band.
Marlow and Moss wrote the show as a student project while they were undergraduates at Cambridge University to take to the Edinburgh Fringe Festival in 2017.
The show subsequently opened at Arts Theatre in London, and later toured the UK before returning to the capital in 2018.
The SiX soundtrack is currently the second highest streamed soundtrack in the world, with songs from the studio album being streamed at a rate of 350,000 per day.
Toby Marlow and Lucy Moss say: ‘We wrote SiX to bring a fresh perspective to story of Catherine of Aragon, Anne Boleyn, Jane Seymour, Anne of Cleves, Katherine Howard and Catherine Parr, bringing them out of the shadow of Henry VIII. The show connects with audiences everywhere and our partnership with Warner Chappell Music will help us take it to even more fans worldwide. And we’re also fizzing with ideas for future shows – we can’t wait to get to work!’
Mike Smith, managing director, Warner Chappell Music UK, comments: ‘We first became aware of Toby and Lucy as the first reviews came in for their Arts Theatre run of SiX. On meeting them it was clear that they were exceptional individuals. Musical theatre’s undergoing a global renaissance right now and it’s self-evident that Toby and Lucy can be at the heart of the new creative explosion. As well as writing and directing SiX, what really excites me about working with them is developing them as songwriters for contemporary artists. We’re already bringing them into writing camps and see a terrific future for them in this area, as well as musical theatre.’
Kurt Deutsch, SVP, theatre and catalog development, Warner Chappell Music, adds: 'SiX is an infectious musical that gives these women a powerful voice through a series of upbeat songs that introduce their stories to a whole new audience. It’s already doing for the Tudors what Hamilton has done for the Founding Fathers. I’m delighted that Toby and Lucy have signed a deal with us and look forward to working with them on driving even more success for SiX and on a whole range of exciting future projects.'