This kitty definitely got the blues. Not sure the exact lyrics she/he is singing, but according to Redditor ValuableDan, they go something like this:
Human’s been feeding me kibble
dun dunnnnn dun dun Ain’t no fit meal for a beast
dun dunnnnn dun dun
Why dontcha go back to the market
dun dunnnnn dun dun
And buy me some Fancy Feast
.