The line-up for this year's Olivier Awards, being held April 28 at London's Royal Opera House and being broadcast live on BBC Radio 2 and in an edited highlights package on ITV1, will include guest solo performances by Matthew Morrison (marking the first time he has ever performed at a major event in the U.K.), Idina Menzel and Petula Clark.
SOURCE: Playbill at 09:16AM on April 5, 2013