I'm drawing a blank on "No, she's dead. This is her son." -- when was that?
That Brittany is so annoyingly stupid, but that line was great.

They seemed to touch up Finn's voice quite a bit in the studio. His voice always sounded so weak especially next to Rachel's, like during Don't Stop Believing.
If you didn't already know, Lea Michele (Rachel) and the new guy Jonathan Groff (Vocal Adrenaline's Jesse) are actually old Broadway partners. You can check out some footage
here