WATCH: Josh Groban’s Oscar moment fit for a king

A costumed Groban sings to the tune of ‘Zadok the Priest’ for an operatic Oscars opening sketch.

​A costumed Groban sings to the tune of ‘Zadok the Priest’ for an operatic Oscars opening sketch.  GMA A costumed Groban sings to the tune of ‘Zadok the Priest’ for an operatic Oscars opening sketch.