LittleJayneyCakes

LittleJayneyCakes, or Jayn, is "a musician who probably spends way too much time playing obscure video games and watching tons of anime."^[1] She sings translated covers of Vocaloid, Anime and video game songs, also offering original compositions, music box arrangements and parody songs. Jayn started her YouTube channel in 2009, became more active in 2012 and has since gained a dedicated fanbase.

Her official website can be found here and her YouTube channel here.

LittleJayneyCakes provides examples of the following tropes:

From her Originals:

Childhood Marriage Promise: Smoke and Mirrors has this line:

[You said] That we'd get married when we both get older.

Evil Laugh/Insane Laugh: Smoke and Mirrors the singer, it's written down in the video and not in the audio of the song.
Indecipherable Lyrics: the chorus in Smoke and Mirrors from 3:33 to 3:38 is pretty much smothered by the main lyrics. However if you extrapolate the fact that everywhere else the chorus echoes the lyrics shortly before it, that narrows it down. Unfortunately the written lyrics don't have the chorus.
Men Don't Cry: The singer Smoke and Mirrors berates the listen for crying.

C'MON WHAT'S THE PROBLEM?
QUIT YOUR CRYING, BE A MAN!^[2]

Murder the Hypotenuse: A girl was "in the way" in Smoke and Mirrors
No Name Given: None of the characters in Smoke and Mirrors have their name revealed.
Obsession Song: Smoke and Mirrors, the lyrics in the video are in a custom font that fits it pretty well.
Unwanted Rescue: In Smoke and Mirrors, sweetheart as evidence by his crying, doesn't seem happy that he was "saved" from his relationship with his significant other. Especially because it involved said girl getting killed.
Yandere: the singer in Smoke and Mirrors

↑ From her channel introduction video.
↑ The all caps text from the video is formatted with a custom font.

[1] From her channel introduction video.

[2] The all caps text from the video is formatted with a custom font.

[1]

[2]