Super Bowl XLVI: Celebrities Pick Sides

Rooney and Kate come from a long line of Giants fans, as their grandfather Wellington Mara was a co-owner of the team from 1959 until he died in 2005.

The Office star plays the easy-going Jim Halpert on TV, but he's serious about his alliance to his hometown team.

Viggo Mortensen, a native New Yorker, recently stopped by Late Show with David Letterman, wearing a Giants tie in support of his team.

Although the iconic rocker was born in New York, his band, Aerosmith, was formed in Boston, making him a big fan of all things apart of New England culture.

Alyssa Milano, a Brooklyn native, might not look like your average football fan, but don't be fooled. The actress reps the Big Blue Wrecking Crew to the fullest.

As a Massachusetts native, Patriots pride runs in The 40-Year-Old Virgin star's blood.

Giants Stadium is located in New Jersey, the birthplace of Jon Bon Jovi. And since the Garden State has no NFL team, it's easy to see the rocker's affinity for the boys in blue.

The late-night host is a proud New England native and even a move to the West Coast couldn't kill his Patriots team spirit.

Spike Lee is most known for his love of the New York Knicks, but the Oscar-nominated director is also a loyal fan of the Giants, which he showed unabashedly when the Giants were victorious over the Patriots in Super Bowl XLII.

The Brazilian model will no doubt stand by her man, Patriots quarterback Tom Brady, for the big game.

Football fans come in all shapes, sizes and walks of life, so in light of the Super Bowl matchup on Sunday between the New York Giants and New England Patriots we've provided a gallery of these teams' most famous fans.