Identify this choral piece?

About halfway through this inspirational video:

http://www.wimp.com/lifemarathon/

…the soundtrack breaks into a choral piece. It sounds familiar, very familiar, but I can’t put my finger on it. Gilbert & Sullivan, maybe?

Can anyone out there tell me what it is?

Do You Hear the People Sing from Les Miserables.

That’s the one they wrote right after HMS Pinafore, right?

But seriously, thank you!