http://www.variety.com/article/VR1118017923.html?categoryId=13&cs=1 The event will be held in Hollwood on May 1, with Hugh Jackman hosting.
"Celebrities performing tributes to musicals include Joel Grey, Patti LuPone, Shirley MacLaine, James Marsden, Brian Stokes Mitchell, Kristen Bell, John Barrowman, Christine Ebersole, Hector Elizondo, Leslie Uggams, Cheyenne Jackson, Melina Kanakaredes, Kelli O'Hara, Lea Salonga and Aaron Tveit."
2008 and 2009 Oscars show producers Laurence Mark and Adam Shankman are producing and directing the show, respectively.