Orangutans!

Orangutans in Borneo have found a way to amplify their calls with leaves! Not technically musical, as the technique is used primarily in situations of danger, but pretty sweet nonetheless.



Links:
Live Science article

Elephant Harmonicist

Elephants are sweet, intelligent creatures who like music. This African Elephant, named "Five," learned the harmonica, and serenades her owners daily.



Links:
Telegraph article