I'll be your hat, buddy. I'll be your hat.

Anyone seeking more info might also check here:

title points age /r/ comnts
Cat IS the hat B 3497 7dys aww 48
Cat in the hat 581 2yrs aww 19
It's been a long day. 353 3mos aww 5
So sleepy... 60 1yr aww 2
Lazy 26 2yrs aww 2
Tired pets. 569 2yrs aww 17
Tired pets 1487 3yrs aww 213
Friendship 60 12dys aww 0
The cat is the hat B 1524 2yrs aww 43
Dog wearing a cat hat. [from /r/aww] B 25 1yr photoshopbattles 9
The best of friends B 2809 1yr aww 274
Best friends B 1192 1yr aww 14
The cat is the hat 1966 12mos aww 25
You bored? Yeah... Me too 293 23dys AnimalsBeingBros 2
A Tired Stella B 428 1yr aww 7
Cold weather solution 31 1yr funny 1
Thinking Cat B 1276 2yrs AdviceAnimals 15

Source: karmadecay (B = bigger)

/r/AnimalsBeingBros Thread Link - i.imgur.com