Yes, Zack's pod-themed serenade has been rattling around my brain for, given that I saw early previews of the show, literal weeks now.
But what if I was to tell you that fans more eagle-eyed than I have noticed that Zack didn't actually write the ballad? That it's actually a 2004 song called "Sara's Song" by a group named Ludo?
...Because yeah, that's what happened.
However, Zack clarified on his Instagram that he did credit Ludo initially and that the tune was his "favorite song" of theirs.
Also, on the editing room floor was Zack's rendition of THE ENTIRE SONG.
In fact, there were other singing moments we did not see!
The band did then clarify that the show got their permission to use the song and added in a statement to People, "We were happy to clear the songs. They used 'Sara's Song' of ours which is a pretty obscure track from our very first album that we released ourselves 20 years ago."
Will there be more of Zack's singing to see? Time will certainly tell!