httpss://www.youtube.com/watch?v=NkVsJGl5d6E

During Tuesday’s This Is Us, the NBC drama went back to the day Jack and Rebecca took the babies home from the hospital and followed the couple as they adjusted to their new life.

As the story unfolded and present-day Rebecca seemingly met William for the first time, the storyline unraveled a deeper history between the two as viewers learned that Rebecca had tracked William shortly after the babies were born and she spotted him lurking outside the hospital.

To find out what went into shooting that heartbreaking episode and what it could mean for Randall and Rebecca’s future relationship, THR caught up with Mandy Moore.

Imagining the grounded feeling that comes with age and the way that I walk is so much more purposeful; almost like you don’t give a f-k. What do you think gives Rebecca that experience?

I also tried to remember that present-day Rebecca is not moving around and trucking along as well as she was maybe in her 30s. So she’s a little slower, but not too much.

Now that Kate has had a singing bit in the show, is t a possibility Rebecca could sing as well? Perhaps a duet?

You’ll see in the next couple of episodes that music was a big part of Rebecca’s life as well and it’s something that maybe Kate got from her.