These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crowning Moment of Heartwarming: In an odd way, "Alfie." It may come of as mean and shaming, but she really did just want to do something that would get him off the couch and do something with his life, and it certainly seems to have worked.
This seems to be a common view of her cover of Keane's "Somewhere Only We Know", particularly in the context of the TV ad for which it was recorded.
Ear Worm: A good deal of her songs. "Smile" and "The Fear" are just the beginning.
Playing a guy whose older sister laments that he is a loser.
Nightmare Fuel: The video for "Sheezus" can come off as this. It features strange effects and at point Lily goes from angelic to demonic. She herself said it was also intended to have a "pied piper".
Tear Jerker: A fair about of her stuff can be rather raw and emotional.
On Alright Still we have "Littlest Things" about not being able to shake memories of better times.
On It's Not Me It's You we have "Chinese" as love song of wanting despertatly to the person you love again, and just to the little mundane things, "I Could Say" a song about the emotional fallout and the feeling of age that comes with ending a relationship.
On Sheezus it gets even more personal with "Take My Place" which deals with grief about her miscarriage and "Life For Me" where she must face the emotional trials of starting a family and no longer leading her party girl lifestyle, the point is pushed harder with out she must constantly remind herself this is what she wants.
She takes it a step further with a bonus track, "Miserable Without Your Love," in which she laments that despite how much she has, she'd give it up to have an ex back.
Unfortunate Implications: Her video for the song "Hard Out Here" met with controversy over alleged racist undertones, such as Allen using predominately black backup dancers while singing about how she doesn't need to shake her booty because she "has a brain". Allen claims the fact that dancers were mostly women of color was an unfortunate oversight, and that they just happened to be the most talented women who auditioned.