Great brain teaser!

Great brain teaser! Thank you!
Living on earth beings of unearthly beauty
I think you guessed it -
cats!
They are graceful,
video musical
And everyone knows, they
perfect!
Who will bend
and twist it?
Who to climb on branches and roofs of a whale?
to Teach them solfege for a long time is not necessary,
in the Spring they sing us a Serenade.
But you think by hitting the Tom-Tom,
What a joy to cats?
Cats can't stand the Madding crowd,
Studs to the sages of the East "you".
Living on earth beings of unearthly beauty
I think you guessed it -
cats!