The teams are set, the halftime show is booked and now one of the last performance aspects of Super Bowl XLV has fallen into place. Christina Aguilera will be taking the field at the Super Bowl for the second time in her career, this time to sing "The Star-Spangled Banner" before the game kicks off on Sunday, February 6 (she was last a part of the big game back in 2000, when she participated in a halftime show that also featured Phil Collins, Enrique Iglesias and Toni Braxton). Aguilera joins the Pittsburgh Steelers (AFC Champions), the Green Bay Packers (NFC Champions) and the Black Eyed Peas (mega-platinum halftime entertainment) as the main participants in the Super Bowl, which will be staged live at Cowboys Stadium in Arlington, Texas.

"The Star-Spangled Banner" is always a difficult song, though Aguilera's pipes should have no trouble with the tune's epic dynamics. In fact, it's sort of old hat for the singer, who first kicked off a sports event with the song back in 1992 when she performed it before a playoff game between the NHL's Pittsburgh Penguins and Chicago Blackhawks.

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Aguilera performed the song for her hometown Penguins, as she grew up in nearby Wexford, Pennsylvania, and the Packers should really consider her presence at the Super Bowl to be an unfair advantage, as the Penguins ended up winning the Stanley Cup (they swept the Blackhawks in four games thanks to incredible performances from Mario Lemieux and Kevin Stevens). Could her good luck extend to the Pittsburgh Steelers?

Who do you think will win Super Bowl XLV? Let us know in the comments!