The voice that Alex Borstein (Suzie) uses to preview her upcoming answering service is the same voice she uses as Lois Griffin on Family Guy (1999).
This episode was Alex Borstein's winning submission for the 2018 Emmy for Outstanding Actress in a Supporting Role in a Comedy Series.
During filming of the scene where Midge bombs onstage, Rachel Brosnahan accidentally whacked herself in the head with the microphone.
This episode contains three different songs from classic Broadway musicals. At the start of the episode, the song "I Enjoy Being A Girl" from Flower Drum Song plays as Midge walks down the street and into the department store. The morning after Midge bombs onstage, she goes back to work to the strains of "Life Upon the Wicked Stage (Ain't Never What a Girl Supposes)" from Show Boat. And as Joel is sitting in the audience of The Music Man, that show's song "Ya Got Trouble" plays over the ending scene and the end credits.
The singer of the background song of the first scene "I Enjoy Being A Girl" is sung by Sutton Foster, who was featured in the "Summer" episode of Gilmore Girls: A Year in the Life (2016) and more importantly Sutton Foster was the lead in Amy Sherman-Palladino's previous series Bunheads (2012)..