Tony Award winning Broadway superstars Kristin Chenoweth and Nathan Lane are currently sharing the Great White Way for just a few short days while Chenoweth's My Love Letter to Broadway concert is onstage at the Lunt-Fontanne Theatre (through November 13). She performs just a couple blocks north of Lane, who is currently starring in a revival of The Front Page playing at the Broadhurst Theatre through January 29. But on an 2000 episode of The Late Show with David Letterman, Chenoweth shared even more with Lane: a stage, a love song, and an unusual medical problem: