Emmy the Great live session: How we wrote ... Mistress England

Kicking off the Observer's alternative tribute to the royal wedding, Emma-Lee Moss performs her new song, Mistress England, and explains how it's a lament for all the mothers who dreamed their daughters would marry Prince William

Buy this Sunday's Observer for an alternative royal wedding special with exclusive new work from other artists including Sue Townsend, Tim Key and MJ Delaney