I didn't intend this to be a Valentines Day thing but now it is cause I forgot Valentines was a thing and this mashup just happens to fit the theme of love/relationships. And yes I'm technically late cause I'm Australian, but it's fine we don't exist anyway.
Music Video: https://www.youtube.com/watch?v=AReaLfJIVms

Song list in order of appearance:
-INSTUMENTALS -
Say so - Doja Cat
New Light - John Mayer
-VOCALS-
Bad Romance - Lady GaGa
This Love - Maroon 5
Dance, Dance - Fall Out Boy
In My Head - Jason Derulo
Die Young - Kesha
Just The Way You Are - Bruno Mars
Touch Tone Telephone - Lemon Demon/Neil Cicierega
Stay The Night - Zedd

El Oh Vee Eee (Video in Description)

i might never be seen again!
Sources Used:
(various Oney Plays episodes)
Lipps Inc. - Funkytown
Mark Ronson - Uptown Funk
Mr Oizo - Cut Dick
Hechizeros Band - El Sonidito
Death Grips - Inanimate Sensation
Uffie - Difficult (SebastiAn 2006 Parties Remix)
Donna Summer - I Feel Love
.
Interpolations Used:
Kirby: Planet Robobot - Puzzle Room
Kanye West - POWER
Porter Robinson - Sad Machine
Childish Gambino - Redbone

Cutdick Funk

For Mashup Days. 
Here's an instrumental version that might go well with other acapellas:
https://soundcloud.com/noisemade/darety-eastwood-2000-instrumental-edition

DAREty Eastwood 2000 (Superfast Edition)

idk if I stole any jokes from other tribute memes but here

guess who just got the tribute stems

Neil Cicierega - Aaron
Cory in The House Theme

Aaron In The House

reupload because original was bad

sauce:
Nickelback - Rockstar
Gorillaz - Humility

why does this work

Such A Numb Time

This is on Ontopic instead of Offtopic because I couldn't be bothered to find an HD instrumental for Dancin

Dancin In The End

again, wooloo completely unrelated to the mashup, but still needed

Cage The Elephant - Ain't No Rest For The Wicked
Santana - Smooth

Ain't No Rest For The Smooth

Somewhere My Hero Belongs

There isn't an official instrumental for this, so I had to use a karaoke track I found on YouTube. I thought it was pretty decent though.

Feeling

Lower-quality, "experimental" mashups. Main account: https://soundcloud.com/almostofftopic