Miss Saigon recently turned 25, and a special celebratory gala performance of the West End revival took place on September 22. Following the show, members from the original company of the Boublil and Schönberg musical took to the stage and joined the new cast in renditions of "The Movie in My Mind," "The American Dream" and more. Those taking part included the Tony and Olivier-winning Kim and Engineer, Lea Salonga and Jonathan Pryce, as well as original Chris, Simon Bowman. Take a look at just a snippet of the festivities below, and stay tuned for more footage of the event from BBC Radio 2!