"Today of all days," the 'Real Love Baby' singer wrote. "Nice"
"The act by the individual was neither planned nor part of the production and was never in any rehearsal," claims producer Roc Nation
Lamar performed several cuts off 'GNX' and his acclaimed Drake diss 'Not Like Us'
Samuel L. Jackson and Serena Williams also made appearances
The Compton rapper headlines the prestigious Halftime Show on Sunday night (February 9)
Kendrick Lamar is set to headline the halftime show
“I wanted to go back to the bite and the grit of rap. Just all raps and hard-ass beats. That’s the basics for me"
The pair made a short film for the NFL
Kendrick Lamar is set to perform at this year's match
"I’ve always had a passion about bringing that on whatever stage I’m on"