Best Friends Forever!

Today was my birthday party
 It was so moving I cried
 I had a super happy good time
 Until most of my best friends died (OH GOD!)
 So I ran into the bedroom
 Where there was still some folks alive
 We had a pajama jammy pillow fight
 But tragically no one survi-ee-ived
 Ooooooh!
 Hey there Ninja Brian
 Ooooooh!
 We're awesome together
 Ooooooh!
 You know that I'm not lying
 Ooooooh!
 Best friends forever!
 Ooooooh!
 But if you wouldn't mind, there's...
 Ooooooh!
 One thing I'd like to request
 Ooooooh!
 It'd sure be great if you could please stop
 Ooooooh!
 Murdering all of my other friends
 That's a dick move, bro.
 Dick move.
 This morning at the dog park
 I met a cool new bunch of guys
 Now we're hanging out together
 And everything- God damn it, Ninja Brian
 A few deaths I could look past
 At three hundred I was concerned
 Fifty thousand murders later
 I'm starting to think you will never lea-a-earn
 Ooooooh!
 Hey there Ninja Brian
 Ooooooh!
 Just always remember
 Ooooooh!
 Through the good times and the homicides
 Ooooooh!
 Best friends forever!
 Ooooooh!
 I think that I can solve our problem
 Ooooooh!
 Meet your new friend, Ninja Jim
 Ooooooh!
 I know you guys will get along great
 Ooooooh!
 Except for the fact you just murdered him
 Really, Ninja Brian?
 During the?
 Heh. I can't stay mad at you.
 Our rock jams
 We'll reign supreme
 As long as you don't stab me
 We'll be a legendary team
 Ninja Brian, what are you doing?
 Is that a knife? Oh, it's a knife.
 I can tell by the way it's stabbing me.
 Sigh. Good talk buddy.