Stephen SondheimComposer/lyricist Stephen Sondheim's 80th birthday may have been on Monday, March 22, but even before that day and since, the New York City theater crowd has been in full celebration mode, with concerts dedicated to the living musical theater legend and other tributes. One of the most lasting of these tributes was announced following the Monday night performance of the Roundabout Theatre Company's new production Sondheim on Sondheim, when it was revealed that Roundabout's recently renovated Henry Miller's Theatre is to be re-named the Stephen Sondheim Theatre. A small group of Sondheim's most dedicated (and presumably most wealthy) fans sponsored the re-dubbing of the theater by contributing to Roundabout's Musical Production Fund. The re-naming ceremony is expected to take place this summer when All About Me completes its run at the theater.