I'm ILL OH SO ILL, I've been catching up on missed TV. Finished S.5 of Doctor Who (Karen Gillan, pls be my friend you ROCK) and am going back to Glee.
One of my all-time favorite performances ever ever ever is Donald O'Connor's "Make 'Em Laugh" from Singin' in the Rain. Epic, ingenious, and wowza. I was happy to see Glee tackle it, and Mr. Schu did a good job with it--and Mike, IMO, as he's one of my favorites, was even better.
But Donald O'Connor?
If you've never seen it, check it out here.