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.
Dead Horse Genre: As noted by internet reviewer Todd in the Shadows, the "charity single" genre has been parodied to death, which makes the selection of celebrities for the updated version (particularly Josh Groban, who has appeared in parodies of the format) rather amusing.
Ear Worm: Try listening to this and not go away humming.
Tearjerker: The money was raised and food was shipped to Ethiopia. Success, right? Unfortunately, Ethiopia was going through a civil war at the time and sold much of the food to other countries and then used the proceeds to buy weapons.