Before Kendrick Lamar takes the field on Feb. 9, the letter notes that "past vulgar performances" might have been okay in those cities, but not in the Big Easy.

One of the major non-football storylines that centers around the Super Bowl is the halftime show. These days, the halftime show is one of the most exciting performances of the year and is headlined by some of the biggest artists of all time.

The 37-year-old rapper has been tapped to headline this year’s NFL championship halftime show, where he will be joined by his longtime collaborator and R&B star SZA. And while many might (understandably) assume Lamar would be getting a hefty paycheck for his service, that couldn’t be further from the truth.