When you look at you and me
As can be..."
A duet where the subject at hand is how different the characters are. Bonus points if the lyrics act like the characters shouldn't be friends, yet they are.
Counterpoint Duet is a more specific form of this trope in terms of song structure.
- Inverted in 36 Questions - the song "We Both" is about similarities between Judith and her alter-ego, as well as between her and her estranged husband.
- "You're So Old/Young", by Greta and Mitch Benn, in which father and daughter sing about how the other one doesn't understand anything.
- In the Doki Doki Literature Club! fan music "Insanity", the main character and Monika sing about the latter's actions, the former about how they're wrong no matter Monika's motivation, the latter trying to justify them and trying to apologize the player about them.
- The Chipmunk Adventure. The Battle of the Sexes song, "The Girls of Rock n Roll," when both The Chipmunks and Chipettes cross paths in Athens, and decide to see which group can out rock the other.
- The Country Bears. Zeb is wrangled into a musical duel against the house band of Cha Cha's bar (which happens to be the Brian Setzer Orchestra); if Zeb wins, his tab is cleared, but if the house band wins, Cha Cha keeps the Country Bears' tour bus.
- Quest for Camelot. Devon and Cornwall's show-stopping number, "If I Didn't Have You," in which they both sing about how much each of their lives would be better if they were separate dragons and not two-headed.
- In Shock Treatment, Brad and Janet Majors' troubled marriage is introduced in the song "Bitchin' in the Kitchen", in which Brad whines and Janet rages. Later in the film, Brad squares off against Farley Flavors in the song "Duel Duet".
- A Goofy Movie has "On the Open Road", where Goofy sings about being on the open road while Max sings about how he'd rather be anywhere else.
- Viva Las Vegas has Elvis Presley and Ann-Margret trading lines in "The Lady Loves Me", Elvis singing about how much she's attracted to him, and Ann-Margret singing about how much she isn't.
- In Buffy the Vampire Slayer, Xander and Anya sing this kind of duet about their strange romantic relationship.
- "Leslie Oscar Duet" (called "Christmas Blech" on the official soundtrack) from A Special Sesame Street Christmas.
- In Galavant Sid tries to get Madalena and Gareth to find some common ground, but it turns into this while he tries to get them back on message. Eventually he gets them to realize that they do agree on one thing: both of them want to throw Sid out the window into the moat.
- Sesame Street:
- "But I Like You" is a song by Ernie and Bert about how they have different likes and dislikes but both like each other.
- Zigzagged for "Loud and Soft". Bert and Ernie sing about their singing styles, and often the singing styles are opposite to one another and the line "Two good friends, me and you, each with an opposite point of view" crops up repeatedly, but sometimes, their opinions do match.
- "Lets Call the Whole Thing Off" is probably the most famous example of this.
- "Opposites Attract" by Paula Abdul is about how she and her lover (MC Scat Cat) are so different yet love each other anyway.
- In A Very Potter Musical, Quirrell and Voldemort sing "Different As Can Be". Quirrell is a peaceful fellow, while Voldemort is a sadistic villain trying to Take Over the World who happens to temporarily live on the back of Quirrell's head.
- RENT: "Take Me Or Leave Me" starts off with Maureen singing about how Joanne should be happy that she's sexy and flirty, but half-way through Joanne starts singing about how she isn't like that, and how different they are. Unlike most examples here, however, the song actually ends with them breaking up because they're too different.
- Dr. Horrible's Sing-Along Blog has Penny and Dr. Horrible himself sing "My Eyes", a song that illustrates their differing worldviews and points of view; Dr. Horrible being pessimistic and cynical, and Penny being optimistic and hopeful. Both are unaware that the other is singing.
- In The Nostalgia Critic and The Nostalgia Chick's Crossover review of The Chipmunk Adventure, the Critic and the Chick parody "The Girls of Rock n Roll"; the Chick sings of how women had to overcome being regarded as second-class citizens who were often denied many basic human rights, while the Critic simply keeps singing about his penis.
- Family Guy featured a duet between Brian and Stewie entitled "You and I Are So Awfully Different" in the episode "Road to Europe".
- My Little Pony: Friendship Is Magic: In the episode "Bats!" Fluttershy and Applejack sing a song about their conflicting ideas on how to deal with an infestation of vampire bats in the orchards of Sweet Apple Acres.
- Sheep in the Big City General Specific and Private Public sing in an unrelated act at the end of one episode a song about their differences, and finally decide to try one anothers interests for the sake of their friendship.
- In the Muppet Babies (1984) episode "Sing a Song of Superheroes", Scooter and Skeeter have a song about being Polar Opposite Twins to the tune of "Dance of the Hours".