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Not merely content with breaking our hearts (in the best way possible) on a weekly basis, Mandy Moore is also going to inject a little bit of her music career into an upcoming storyline on This Is Us.

When asked about what lies ahead for her character, harried new mother of triplets Rebecca, while chatting with E! News' Erin Lim at the 7th Annual Veuve Clicquot Polo Classic, Moore revealed that episode five of the fall's breakout his drama is going to get musical. 

"The next episode is at a pool. Milo [Ventimiglia] and I got to shoot at a pool with our eight-year-old children. But the fifth episode, I get to sing in," Moore teased. "So I'm excited about that. And it sort of reveals that my backstory, I was in a bar band. So there will be the music connection moving forward."

This Is Us, Mandy Moore

NBC

Of course, expect more than a few tears mixed in with Moore's musical moment. In fact, you may want to start stocking up on the tissues now. "I feel like the fifth episode is going to destroy people," Moore admitted. "Milo and I watched it the other day and I was—I was beside myself. I got to my car 20 minutes later and just started bawling by myself after I had cried right after. It's a lot to take in."

Before we can get to what promises to be a heart-wrenching hour, we've got tonight's new episode to look forward to. Aside from Moore and Ventimiglia's young parents Rebecca and Jack taking their kids Kevin, Kate, and adopted son Randall to the community pool in the flashback storyline, we'll see adult Kevin's rocky entry into New York City's theater scene. "You'll see Kevin stumble a lot in the next episode," star Justin Hartley told us. "It'll be uncomfortable for you to watch a little bit."

For more from Moore and Hartley, including what it's like to watch the emotional show when you're also appearing in it (spoiler: they cry just as much as us), be sure to check out the video above.

This Is Us airs Tuesdays at 9 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)