Based on the promo for its 2012 return, we know a few storylines on the way for Glee:

Will is set to propose; Finn might join the Army; Sam will become a synchronized swimmer.

Now, we also have an idea of what sort of songs the show will cover. Look for more mainstream, modern tracks to be heard in the new year, starting with a Lea Michele and Naya Rivera duet on Rihanna's "We Found Love" and Kevin McHale mashing up "Moves Like Jagger" and "Jumpin' Jack Flash." Listen to both versions now and remember:

Sort through all singles in our Glee music section!