“Imagine Mozart and Adele in the same room in an intense co-write session.” This is the premise behind “Chello,” a mash-up of Adele’s “Hello” and “Lacrimosa,” a section of Mozart’s Requiem Mass in D.

From massive dance remixes to ridiculously talented children belting out 'Hello', there are so many great re-workings of Adele's hits on the internet. But nothing is more beautiful than this mash-up ...