Bobby McFerrin is known for the song Don’t Worry, Be Happy. He also does beatbox and a cappella.
Here Bobby has the audience sing Ave Maria while he does the Bach Prelude.
In the clip he sings Carmen Habanera with Aziza Mustafa Zadeh.
Bobby sings Hush Little Baby with Yo-Yo Ma on cello, Mark O’Connor on violin and Edgar Meyer on bass.