Introducing numbers were Dirty Blonde's Claudia Shear and The Ride Down Mt. Morgan's Patrick Stewart. Stewart (with A Moon for the Misbegotten's Cherry Jones) gave away the $2,500 Continental Airlines scholarships and two free tickets to their shows to LaGuardia High School graduating seniors Jed Peterson and Eliza Segell. All of Broadway steps out to give a number or introduce one (giving the plays a chance to speak) for the free concert, Stars in the Alley, held May 31 in Shubert Alley. Everyone from the newest additions to the scene -- Craig Bierko, Glenn Carter and Sharon Lawrence - to stalwarts like Rebecca Luker and Bernadette Peters, are on hand to sing and talk about Broadway theatre and the current season's offerings.