The three teams joining Marvin and Rochelle Humes are TV presenter Chris Packham and his stepdaughter Megan McCubbin, comedian Russell Kane and Drag Race UK winner Lawrence Chaney, and radio/TV presenter Nihal Arthanayake and TV personality Scarlett Moffatt. But who will hit the right note and get the chance to win £10,000 for their chosen charity? Get ready to play along and shout out the answers at the telly!