Scott Olson

When you think "presidential inauguration," you probably picture a man in a suit and tie with his hand on the Bible, solemnly swearing to "preserve, protect and defend the Constitution, cross my heart and hope to die, stick a needle in my eye" and so on and so forth. But do you picture a pop concert?!

When Barack Obama re-ups for U.S. President on January 21, the Commander-in-Chief's second term will be commemorated with a pop music-heavy concert that puts the VMAs to shame. In fact, the likes of a concert like this hasn't been seen sinceā€¦ well, Obama's last swearing-in.

Obama fangirl Katy Perry, Alicia Keys, Usher, fun., Stevie Wonder and John Legend will join previously announced performers Beyonce, Kelly Clarkson and James Taylor at the inauguration. 

And because Ryan Murphy has his hand in everything these days, the cast of Glee will smile and dance at the inauguration as welll. If I were a betting man, I'd put money on them singing an a cappella version of Dead Kennedys' "Kill the Poor," Rage Against the Machine's "Take the Power Back" or Peaches' "F--k the Pain Away." Either that or "Don't Stop Believin'."