Codement - Soup Store

A Capella Science - Entropic Time

Good Charlotte and Simple Plan (?) - Barbie Girl

Troye Sivan - Youth

The original music video won't allow for embedding, 

so here's the lyric video. 

Dr. Mario - Fever

Babelo Filmoj - Dek Bovinoj

Rachel Bloom - I'm a Good Person

Joyce Kwon - Heartburn

Haddaway - What is Love?

Rebecca Black - Friday

After all, I hear Match Day is always on a Friday.

Flula - Hamburger Autotunes

Transition - Dui Bu Qi

Runawaybox - One Semester of Spanish Spanish Love Song

Sorted Food - One Digestion

Gunnarolla - A Very Daring Asian Music Video

Hank Green - Translating Dance Songs

The very last one is really just a masterpiece.

Andrew Huang - Vass Tunga

Schmoyoho - Happy Sad Songs & Sad Happy Songs

Susan Egan - Disney Heroine Medley

So apparently Susan Egan has turn off the potential for embedding of this video, but it's worth a listen on youtube -- link here.

Hannah Hart - Summer Jam