The wallpaper in Ben's apartment is the same pattern as the carpet in the Overlook Hotel in "The Shining."
Several times during this episode, Howard (Michael Cyril Creighton) proposes the idea that a friend who works for State Farm insurance could help sponsor the newly musicalized production if Donna and Cliff DeMeo decline to back it. The episode's end credits contain an acknowledgment that State Farm paid the producers of Only Murders in the Building for this promotion. In an August 2023 article in AdWeek, Bill Bradley reported, "looking to build on its existing partnership with Disney Advertising, State Farm is taking a '360-approach'.... The brand will have in-show integrations and expand its presence outside the show to include sponsorship of the series' after-show, One Killer Question."
Though her name is not mentioned on here, Sara Bareilles was also a writer of the song "Look for the Light"
Loretta (Meryl Streep) mentions being in the original cast of Little Shop of Horrors "when they were workshopping it". Steve Martin (Charles) starred in Frank Oz's 1986 film version of Little Shop of Horrors (1986) as Dr. Orin Scrivello D.D.S.
When Loretta (Meryl Streep) is talking about her audition, it is for "an offshoot of an offshoot of a Grey's Anatomy spin-off." Jesse Williams, who plays Tobert this season, played Dr. Jackson Avery in Grey's Anatomy.