Passengers at St Pancras got a shock earlier this week when nearly 1000 people sang "Do You Hear the People Sing?" from hit show Les Miserables, the film of which was recently released on DVD.

It's the latest in a wave of Les Mis-themed flash mobs, including this impressive effort from a wedding party in Copenhagen:

Les Miserables originally opened in London at the Barbican Theatre on 8 October 1985, transferred to the Palace Theatre on 4 December 1985 and moved to its current home at the Queen's Theatre on 3 April 2004.

The recent Oscar-winning movie adaptation starred Hugh Jackman, Russell Crowe, Anne Hathaway, Samantha Barks, Eddie Redmayne and Amanda Seyfried.