My top five musical numbers from the first half of the season:
1. "River Deep, Mountain High" by Mercedes and Santana - awesome. That's all that needs to be said.
2. "Dog Days Are Over" by Tina and Mercedes - I'd never heard this song before, but the cover was amazing, and it's Exhibit A for why Tina should sing more.
3. "Marry You" by New Directions - bouncy and fun, easily the most memorable group performance so far this season (and it's a genuine group performance, with eight of the twelve kids singing, if only just in a few cases).
4. "Damnit Janet" by Finn and Rachel - possibly Cory Monteith's best vocals so far, and the performance on the show is incredibly fun.
5. "Toxic" by New Directions - easily the most interesting rework of a song the show's done in quite a while; the performance on the show is dragged down by too many unnecessary cutaways to the audience, but it still sounds amazing.