The cast of the American television phenomenon Glee will shortly be touching down in the UK ahead of their performance on Sunday night's X Factor semi-final and news has reached Whatsonstage.com that the cast being in the UK might be cause for a reunion at the West End's Noel Coward Theatre where their former cast-mate Jonathan Groff is currently starring in Matthew Warchus' revival of Deathtrap. Stars including Lea Michele, Cory Monteith, Amber Riley, Kevin McHale, Chris Colfer, Mark Salling and Dianna Agron are all exptected to attend the play, which is running at the theatre until 15 January 2011. Groff, who played the male lead in rival glee club, Vocal Adrenaline for eight episodes of Glee, also starred alongside Lea Michele in the Broadway production of Spring Awakening. Groff stars alongside Simon Russell Beale, Claire Skinner and Estelle Parsons in Warchus' revamped version of Ira Levin's 1978 comic thriller. The cast of Glee will return to the Europe next summer for a series of arena concert which will play dates in London, Manchester and Dublin. Recently announced jukebox musical Million Dollar Quartet will be the next tenants of the Noel Coward, opening on 28 February 2011 (previews from 8 February 2011).