LOS ANGELES -- Some of Broadway's biggest stars are joining together to pay tribute to the late three-time Tony Award-nominated actor Rebecca Luker and raise money to fight Lou Gehrig’s disease.Kristin Chenoweth, Laura Benanti, Sierra Boggess, Michael Cerveris, Victoria Clark, Santino Fontana, Judy Kuhn, Howard McGillin, Norm Lewis, Kelli O’Hara and Sally Wilfert will perform in a show Tuesday night that will feature stories and songs from Luker’s career."Such wonderful people are doing it and