The American Red Cross and the NFL are teaming up to give you a chance to go to the Super Bowl in Miami.
All you have to do is donate blood.
The Red Cross says there is a "critical need" for all blood types.
Anyone who donates with the Red Cross between now and January 19th will be entered to win. For more details, go to redcrossblood.org.
What is the biggest thing you've won by donating to a charity auction or function?