As the concept of "Marilyn the Musical" begins to take shape, two very different actresses are dying for a chance at the lead.

The final decision is revealed after Ivy and Karen are brought back for a second callback.

The search begins for a Joe DiMaggio to play opposite Marilyn - but everyone's first choice, Michael, has a secret.

Tensions between Karen and Ivy run high as workshop rehearsals begin; Derek throws a birthday party for an old friend.

Karen finds a new use for her acting talents as she joins Dev at a high-powered government party. Meanwhile, the drama between Michael and Julia heats up.

Ivy faces major vocal issues, while Julia struggles to avoid Michael. Meanwhile, Karen books a side gig at a bar mitzvah.

Everything comes to a head as Eileen, Derek and the team present "Marilyn the Musical" to would-be investors.

Ivy remains in the dark about her fate, while Derek recruits Karen to help him steal the musical from Tom and Julia.

The team begins their pursuit of a marquee star, as Eileen charges Tom and Julia with finding a title for the newly reinvigorated musical.

The show has landed star Rebecca Duvall, but Eileen is thrown into a panic when Rebecca gets stuck in Cuba.

"Bombshell" is turned upside down by the arrival of movie star Rebecca Duvall.

Karen finds herself seduced by the glamorous life of new BFF Rebecca Duvall... but can Rebecca be trusted?

"Bombshell" moves to Boston as it finally finds its way to the stage. Meanwhile, Karen reaches a turning point; she must choose between Dev and the show.

"Bombshell" faces its first audience just as a major crisis hits Rebecca Duvall.

The big night is finally here. Tom and Julia race against time to save the show, while Derek makes a decision that will change the lives of Karen and Ivy forever.

A scandal puts Bombshell's fate in jeopardy, while new talent is discovered in an unexpected place.

A scandal puts Bombshell's fate in jeopardy, while new talent is discovered in an unexpected place.

Eileen makes a bold move to reinvent Bombshell, while Ivy auditions for a lead role that could make her the star she's always dreamed of being.

Peter challenges Julia's pride while Jimmy trips over his; Ronnie defies her powerful mother.

All eyes are on Julia's reworked book, Hit List has its first read-through and Ivy meets her new co-star.

Derek and Karen make a tough decision as "Hit List" faces its first performance.

Tensions boil on Liaisons, while Eileen may have found the key to saving Bombshell.

When Derek and Jimmy butt heads over "Hit List," Karen gets caught in the crossfire.

Ivy's mom joins the "Bombshell" cast; a visit from Karen's dad causes tension at "Hit List."

Tom plans the birthday surprise of a lifetime for Ivy.

A wardrobe malfunction forces Ivy into a risky choice; tensions mount at Hit List.

It's the night before the opening of "Bombshell," and all sides of the production are waging their own inner battles.

Jimmy goes off the rails, threatening the future of Hit List.

An unexpected tragedy bonds the casts of Hit List and Bombshell.

Betrayal rocks "Hit List;" Ivy's forced to do damage control on her public image.

Hit List and Bombshell face off at the Tonys.

Hit List and Bombshell face off at the Tonys.