And so… it was finally opening night for “Bombshell” on NBC’s Smash. And the signature song “Don’t Forget Me” (written by Marc Shaiman and Scott Wittman) was featured yet again.

It made its first appearance in the season 1 finale (where you can see everyone just as moved by Karen’s performance as much as Ivy’s)

Now the question is, who do you think sang it better?

Katharine McPhee as Karen:

OR

Megan Hilty as Ivy: