Armando tries to impress Marlena on Sweetheart's Day but accidentally casts a spell that makes everyone sing.
- Ambiguously Bi: The two men flirting with Marlena later appear to flirt with each other after the curse is lifted.
- Ambiguously Gay: Marlena gives flowers to a pair of women.
- Bait-and-Switch: At the start of the episode, Armando is about to sing about his crush on Marlena, only for it to turn out he doesn't have a good singing voice.
- The Cameo: The palace staffer cutting the bushes is voiced by Travis Willingham.
- Chekhov's Gun: The recipe for the singing potion has a picture of a man serenading to a woman up on a balcony. At the end of the episode, Marlena sings to Armando, who is up on a balcony.
- Continuity Cavalcade: Doña Paloma's store sells various items from previous episodes, including the piñatas and magic masks from "Masks of Magic".
- Continuity Nod:
- Elena's arm is still broken.
- Luisa worries that Francisco doesn't love her anymore, following up on her fears from "Sugar Rush" that her family was drifting apart.
- The couple that gets together at the beginning has also been shown dancing together at Carnaval in "The Magic Within" and as lab partners in "Class Act".
- Armando says that Marlena smells nicer than any cheese he knows. It seems like a strange comparison, but it's slightly more understandable considering we know from "All Kingdoms Fair" that he grew up in a family of cheesemakers.
- Dark Reprise: Luisa's song, "Sweeter Days", is one of Marlena's song, "Sweetheart's Day", from the beginning of the episode.
- Hollywood Tone-Deaf: Armando’s singing voice is so terrible, that Flo can’t stand it. Not wanting to endure his butchering voice any further, Flo pushes Armando to make a magic potion that he thought was supposed to fix his voice, but made everyone sing instead.
- "I Am Great!" Song: Doña Paloma's song, "I Have All You Need (And More)".
- Musical Episode: Unlike most episodes, which typically have one song, this episode is more of a musical or opera.
- Musical World Hypotheses: Armando wants to sing about his love for Marlena in song, but is tonedeaf (at first). When he and Flo concoct a bad potion that makes everyone sing, nobody realizes this until it's pointed out by either Armando or Flo.
- No Antagonist: No antagonist, just Armando's tonedeafness.
- That Poor Cat: After Armando breaks the windows the third time he tries singing, the Stock Scream of a cat is heard.
