Prince of Wales Theatre seating capacity slightly to 1,160 seats and to modernise the theatre's facilities. New bars were added, the auditorium completely rebuilt, the backstage areas refurbished and the theatre's famous tower and exterior completely gutted and refurbished with new LED lighting and a crisp modern finish. The theatre re-opened with ABBA's musical "Mamma Mia!" on 16 April 2004. On 18 August 2007, "Mamma Mia!" became the longest-running show ever at the Prince of Wales, overtaking the previous record held by "Aspects of Love" with 1,326 performances at the venue and counting. The production marked another landmark on Thursday 23 August 2007, celebrating
Gillian Lynne Theatre musical adaptation of "Gone With The Wind" ran for only two month. New musical Imagine This closed after only being open for one month. The National Theatre production of "War Horse" transferred into the theatre from the 28 March 2009 where it stayed until 12 March 2016 after over 3,000 performances. The theatre was home to the Sheffield Cruicible's production of the musical "Show Boat" which opened on 9 April 2016. Despite positive reviews, the production closed early, on 27 August 2016. On 22 October 2016 the London production of Andrew Lloyd Webber's "School of Rock" the musical opened, direct