VIDEO: Sneak Peek - Katharine McPhee Sings Reimagined 'Bombshell' Number

On tonight's episode of NBC's SMASH, new director Tom reimagines one of the hit songs from the fictional Bombshell. The episode airs tonight, Tuesday at 10/9c on NBC. Below, check out Katharine McPhee in the musical number!

In tonight's episode, titled 'The Read-Through,' Ivy (Megan Hilty) realizes her triumph might not be all she hoped when she meets her new co-star, Terry Falls (guest star Sean Hayes) and Julia's (Debra Messing) fears increase when Tom (Christian Borle) airs his suspicions of Peter (guest star Daniel Sunjata).

Meanwhile, Jimmy (Jeremy Jordan) and Kyle (Andy Mientus) confront their own crisis of confidence as "Hit List" is read for the first time and Karen (Katharine McPhee) wonders if she can trust Jimmy. Anjelica Huston, Jack Davenport and Krysta Rodriguez also star. Daniel Sunjata and Nikki Blonsky also guest star.