Insanely Awesome Hip-Hop Cello Beatboxing by Mark Summer
Thanks @techbloggerjoel for sending that in!
From the description
This is a piece called Julie-O by Mark Summer. I took it and made an arrangement for cello and beatbox. I hope you all enjoy it!
Follow Me, Peoples!!
Contact me: http://kolusolamusic.art.officelive.com/contact.aspx