This big football game thing happening on Sunday is turning out to be quite the musical extravaganza.

Lea Michelle of Glee is going to be singing "America The Beautiful" before the game, Christina Aguilera will be crooning "The Star Spangled Banner", and the Black Eyed Peas will be your halftime entertainment.

But wait! There's more! It's rumored by an insider that Usher and Slash (the former Guns 'N Roses guitarist) will be joining the Black Eyed Peas in a star-studded halftime spectacular!

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