Lurleen Lumpkin returns and stays with The Simpsons (despite that Marge really hates her from the events that happened in "Colonel Homer") so she can revive her dead career and search for her long-lost father.
- The Bus Came Back: Lurleen
- Clingy Jealous Girl: Marge. After forgiving Lurleen, she threatens her with serious bodily harm if she comes near her husband again.Marge: If you ever come near Homer again, I'll strangle you with your own hair extensions!
- Hoist by His Own Petard: When The Dixie Chicks learned of the theft, they joined with Lurleen in beating up Royce with their instruments.
- Jerkass: Royce, not just re-abandon Lurleen again, but also steal her new song "My Daddy's Back," re-wrote the lyrics and gave it to the Dixie Chicks as "America's Back," telling them that he had written the song. On a minor note, he wears a Confederate belt buckle which is a controversial symbol since it's associated with southern nationalists.
- Parental Neglect: Royce abandoned Lurleen when she was four years old. He didn't reappear in her life until thirty years later, when Marge Simpson tracked him down. They had a joyous father-daughter reunion, which inspired Lurleen to write a song called "My Daddy's Back". All too soon, however, Royce reverted to type and abandoned Lurleen again.
- Plagiarism in Fiction: Royce Lumpkin stole his own daughter's new song.
- Sequel Episode: To "Colonel Homer".
- Serial Spouse: Lurleen has been married 5 or 6 times, all to men that look and act just like Homer. At the end of the episode, she falls for yet another man who resembled Homer.
- Lisa's line in "Daddy's Back" was "Keep it down, I'm reading Harry Potter."
- Also, when receiving a Full Name Threat, Royce Lumpkin was called "Royce Boss Hogg Lumpkin". Lurleen once starred a clip with Kermit and Miss Piggy.
- The opening of the episode where Homer kills Grampa is a homage to Christopher Moltisanti's death in The Sopranos.
- Wearing a Flag on Your Head: Royce is from the south and wears a belt buckle depicting the Confederate flag.