Kittens are usually fluffy balls of energy, which only makes it cuter once they’ve inevitably fallen asleep. In this video, musician Sarah Donner sings one of her furry friends to sleep with the help of her trusty ukulele and the song "Treeline." You can tell the little guy really wants to listen, but he's just … too … tired. The other two kittens in the background, however, seem to be paying no mind to Sarah or her song, and just keep roughhousing. There’s no accounting for some cats’ musical tastes.