full size Rachel Enjoys the Show in Season 2, Episode 12: "Silly Love Songs"
Credit: Michael Yarish/FOX © 2011 Fox Broadcasting Co.

If you were disappointed that Lea Michele (Rachel) and Dianna Agron (Quinn) didn’t have a duet during Glee last week — the opportunity was there in the auditorium! — here’s some great news: The two real-life friends will perform together before the season is out.

Yesterday, Lea tweeted, "Just recorded one of my favorite mashups with @alittlelamb [Dianna Agron]! Can't wait for you guys to hear it:)"

We can’t wait either. In the meantime, we can speculate: Which songs will they mash up? What are the circumstances of their duet? Could it be yet another girlfight over Finn (Cory Monteith)?

Source: Twitter

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For more spoiler-y fun...
- WP’s Scoop on PaleyFest 2011
- Ryan Murphy Spills Season 2 Secrets at PaleyFest 2011
- Will Jonathan Groff Return to Glee?
- Charice’s Song Revealed!
- Kurt and Blaine Face Troubles, Brittany and Artie Don’t