This is not Team Fortress 2's Original Soundtracks/Songs
These are Custom Made!

S.N.I.A — Piece A' Piss (feat. Clash And Dagger &amp; The K.G.B)

Sim of the Layers

Original uploader: https://www.youtube.com/channel/UCjEXXGUiTJc10FKq5uVRSug

I didn't make this song myself, but I have the original uploader's permission to reupload. Copyright goes to them! TF2 belongs to Valve!

We Fight Like Men - Heavy Weapons Guy

Mr. Snortobeat

We are number one but its a Waluigi Parody, Check out the music video for it!

https://www.youtube.com/watch?v=W3mWZxCmEzk&feature=youtu.be

We Are Number One - Waluigi Parody

I leave Mr. Kayek out of the cage for one second and hes already overdosed himself on memes. If you see a naked man running on the streets; screaming to himself, that's probably him. 

Don't call me to pick him up, hes your problem now.

You KayeK'd in the Wrong Neighbourhood

A song originally from a little British puppet show in mid 2010. Imagine the Muppets except if Adult Swim was their creator.
Thumbnail originates where I got the song in the first place, which is used in a TF2 SFM reenactment of the song, made by ThatAverageJoe:  
https://www.youtube.com/watch?v=68N_-OqaJ7g

Mongrel Spy [The Mongrels/ We Are Mongrels] [TF2]

DutchBro