P!nk slowly goes insane when her boyfriend attempts to leave her in the music video "Please Don't Leave Me".
Kesha sings to "Stephen" that she "can't take rejection".
The Beatles: "Run For Your Life," despite its pleasant jangly sound, is about a man threatening to murder his girlfriend if she gets with another man.
The girl from "Baroque" in Sound Horizon is a Psycho Lesbian yandere nun (going by her costume in the live version, anyway) who kills the girl she loves for rejecting her.
And in "Stardust", Stella, an actress who's implied to be a White-Dwarf Starlet, shoots her lover after catching him with another girl. "The bouquet in my left hand can't stop the impulse [read: gun] in my right..."
There's also the song "Yield", which is more or less about a girl living at a farm who is in love with her father, and when he doesn't return these feelings, she murders both him and her mother.
Played for laughs in Napoleon XIV's "They're Coming To Take Me Away Ha-Haa".
Inside Out makes a parody of "Happy Together" and transform it into a song about a guy who was rejected by his girlfriend. He takes a Shower of Angst while eating out of depression, worships a Stalker Shrine of her, says he's going to force her to come back to him, and stalks her complete with Slasher Smile. At one point he takes her cat and threatens to hurt it unless she talks to him. He's arrested at the end of the song.
Eminem has a tendency for break up songs or singing about how a guy gets possessive around his girlfriend to murderous degrees.
In Eminem and Rhianna's song "Love The Way You Lie" Eminem threatens about how if his girlfriend ever leaves him he'll set fire to their house with her in it after restraining her to the bed.
"Kim" by Eminem is what happens to a male Yandere just after he snaps. It is not pleasant to listen to. He ends up shouting at her when he found her with another guy, killing the guy, and locks her in trunk.
From the same album (The Marshall Mathers LP), Eminem gives us the song "Stan" about a yandere stalker's descent into madness when he thinks Slim (the star he's yandere for) is rejecting him by not sending him letters. He ends up killing himself and his girlfriend who's pregnant with their child. Turns out he gets them after Stan kills himself.
In "Starbound" he snaps his girlfriend's neck and then kills himself.
I want to mix our blood, and put it in the ground. So you can never leave. I want to earn your trust, your faith, your heart; You'll never be deceived.
Becomes interesting when it was revealed that these are not just lyrics, but what Autumn's boyfriend spoke to her at one point. Verbatim.
"Closer" by Burn Season contains the following lyrics which imply this:
Don't say that its over I'd kill to be closer A moment I'm passing to you But to me I will wait And I'll take Anything with your name Don't say that its over You can't live without me You say there's something wrong in my head So I like to bleed You say I'm scaring you now but I'm tired From watching you sleep I'd erase what you say Scramble words in the way But you can't take away Turn away Run away Fuck with me
"Smoke and Mirrors" by Jayn is an original song written specifically with the yandere genre in mind. The lyrics are explicitly about a girl kidnapping her childhood friends wife and threatening to murder her if he refuses to be with her. She kills her.
I'm not asking much Just give me your heart and put no one else above me Go on, say you love me! Take my hand in yours and tell me that I'll always be the one Without you my life means nothing So just say you love me tonight! And if you lie, this poor girl will have to die
In The Willow Maid a young man lusts after the titular willow maid and asks her to marry him. After she rejects him, telling him that she cannot leave the forest, he chops down her tree. Predictably, this leads to her death.
Tyler Farr: In "Redneck Crazy", he lists off all the ways he's going to make his ex's life hell for breaking up with him.
Did you think I'd wish you both the best, Endless love and happiness? You know that's just not the kind of man I am Yeah, I'm the kind that shows up at your house at 3 A.M. I'm gonna aim my headlights into your bedroom windows Throw empty beer cans at both of your shadows I didn't come here to start a fight, But I'm up for anything tonight You've gone and broke the wrong heart, baby