Just so yah know

They literally (and legally) agreed that it was ripped off from Texas A&M, but they like it so so much.

...n the agreement, Texas A&M will allow the Seahawks to continue using the phrase "12th Man" provided the NFL franchise acknowledges that the copyright on the slogan belongs to the school.

The dispute had been simmering for years, but things hit a boiling point earlier this year when A&M sought a restraining order to block the use of the 12th Man or any variation of the slogan by the Seahawks during the week before the Super Bowl against the Pittsburgh Steelers in Detroit.


A&M, Seahawks settle 12th man flap - Houston Chronicle