By Chloe Melas

CNN

(CNN) -- Now might be a good time to grab some Kleenex.

NBC has released tear-jerking promotional video for its hit drama "This Is Us."

In a tribute to the show's viewers ahead of Season 2, a group of "This Is Us" fans share personal stories about their connection to the Pearson family. Unbeknownst to them, stars Mandy Moore, Chrissy Metz, Milo Ventimiglia and Sterling K. Brown are listening backstage.

And -- as with most "This Is Us" episodes -- everyone is crying.

Then, just when you thought the show had drained your last possible teardrop, the cast surprises the adoring viewers.

Cue your ugly sob.

The NBC freshman series has been a breakout success for the network.

"This Is Us" will move to Thursday nights when it returns in the fall.