Perry played the lead role of Belle in the musical Only the Brave, which had its world premiere at the Edinburgh Festival Fringe on 31 July 2008 at the George Square theatre and ran until 25 August.
[12] On 16 November 2008, Perry sang at St Paul's Cathedral in the City of London at a fundraising and awareness raising event for Save the Children.
[14] In May 2009, Andrew Lloyd Webber revealed on an episode of 'Friday Night with Jonathan Ross' that Perry would be singing one of the roles on the Original Cast Recording for Love Never Dies, the sequel to Phantom of the Opera, describing her as "wonderful".
[18] Perry went on to impress as Johanna Barker in Sweeney Todd: The Demon Barber of Fleet Street at the West Yorkshire Playhouse and then at Royal Exchange, Manchester.
[19] In February 2014, it was announced that Perry had been selected to lead the cast of the revival of Andrew Lloyd Webber musical The Beautiful Game when it returned to London.