(slowed + reverb) The Hangover | Three Best Friends - Zach Galifianakis 

Lyrics:
And we're the Three Best Friends
That Anyone Could Have
We're the Three Best Friends
That Anyone Could Have
We're the Three Best Friends
That Anyone Could Have
And We'll Never never ever ever ever
Leave Eachother
We're the Best Three Friends
That Anyone Could Have
I mean the Three Best Friends
That Anyone Could Have
We're the Best Three Friends
That Anyone Could Have