Comedians Rob Rouse, Pippa Evans and John Thomson are among the panellists for BBC Two special Gareth Malone’s All Star Music Quiz. They join former MP Ed Balls (on piano), award winning saxophonist YolanDa Brown, plus TV presenter and former member of JLS, JB Gill (on piano) joining the nation’s favourite choirmaster for musical frivolities as part of BBC Music Day celebrations. Musical Director for the show is Richard Beadle, who is currently presiding over West End smash-hit Hamilton.