'Smash' first-look: Uma Thurman's debut as Rebecca Duvall

Uma Thurman is coming to "Smash" on Monday (April 9) as movie star Rebecca Duvall, who sweeps in -- for five episodes -- to steal the role of Marilyn away from Ivy (Megan Hilty) and Karen (Katharine McPhee).

The Marilyn musical has finally landed its star in Monday's "Understudy," but Eileen (Anjelica Huston) is freaking out when Rebecca gets stuck in Cuba. Derek (Jack Davenport) puts Karen in as understudy -- gasp! Elsewhere, Tom and Julia (Christian Borle and Debra Messing) celebrate their anniversary. At least one relationship is still working out for her.

Check out these first-look photos of Thurman putting her best Broadway foot forward in "Understudy."

How do you think Thurman will do as Marilyn?