It's the penultimate episode of the season, and things. Are. Happening. Not that we're not excited about the great Stevie Wonder hits, but can we talk for a minute about a) Mercedes (Amber Riley) and Kurt (Chris Colfer) back in the choir room? Or, more importantly, Blaine seemingly asking for Burt's blessing before asking for Kurt's hand in marriage? Our brains are kind of exploding right now.