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
Prince of Wales titled Princess of Wales. There was also no Prince of Wales for the first several years of the reign of Elizabeth II. Prince Charles was not named Prince of Wales until 1958, when he was nine years old. The title of "Princess of Wales" has always been held by the Prince's wife in her capacity as spouse of the heir apparent and therefore future queen consort. The current Princess of Wales is Camilla, Duchess of Cornwall, who automatically assumed the title upon her legal marriage to Prince Charles. Camilla however has chosen not to be publicly known by the title