The concert is being presented on TV next weekend
First look photos have been released for the BBC's Musicals: The Greatest Show event taking place this evening on BBC Radio 2 (7 to 9pm GMT) and next weekend on BBC One (Sunday, 7.40pm GMT).
Featuring a plethora of performances recorded at The London Palladium, you can take a look at images below ahead of 7pm's radio broadcast.
Find out who's set to appear here.
Later today, Radio 2 is also set to unveil the nation's favourite musical tunes – keep your eyes peeled for more!