Super Bowl 51 is today and the city of Houston has been taken over by the NFL and hundreds of thousand of fans and celebrities.

The New England Patriots will be looking to win their 5th Super Bowl in franchise history while the Atlanta Falcons will be looking to win their first.

Kick off for the game is set for 5:30 p.m. but before the kick off country music superstar Luke Bryan will do the honors of singing the National Anthem.  This isn't the first time he has sang the National Anthem.

In 2012, Luke sang it at the Major League Baseball All Star game and was caught reading the words off of his hand. Check out the video and you will see where he refers to his hand during the performance.

The Super Bowl starts at 5:30 p.m. and will be televised on Fox.