Who sang "Dark Horse"

Katy perry was the one who sang dark horse:)

How long did it take you to write all that out? ?

Beethoven was a deaf man and couldnt hear. he became famous for his classical pieces. and there ye go.vivaldi was a true one hit wonder classical artist. hes known for his classical piece the four seasons. he was although wasn't as great as beethoven and yea 'ere ye a go.