Josh tomáš macháč Groban ss united states artificial reef with Rock Choir and the BBC Concert Orchestra perform Bridge Over Troubled Water live in Hyde Park for BBC Radio 2's Last Night of the Proms Celebrations.
UK viewers can also catch Josh perform a song from The Wizard Of Oz live in our 'Musicals at Proms in paul daraîche Hyde Park' special until 8th October 2018:
