Photo Flash: More from SMASH's 'The Fringe' Episode

On SMASH's upcoming episode, titled "The Fringe," Derek (Jack Davenport) and Karen (Katharine McPhee) find themselves at a surprising crossroads, forcing one of them to make a difficult choice. Jerry's (guest star Michael Cristofer) uneasy partnership with Eileen (Anjelica Huston) hits a snag, as does "Hit List's" first performance at the Fringe Festival. Meanwhile, Ivy's (Megan Hilty) last-ditch effort to save her and Terry's (guest star Sean Hayes) show has unexpected results. Debra Messing, Christian Borle, Jeremy Jordan, Andy Mientus and Krysta Rodriguez also star. Sean Hayes, Jesse L. Martin, Daniel Sunjata and Nikki Blonsky guest star. "The Fringe" airs March 12 at 10 p.m. on NBC.