Usher has some advice for Kendrick Lamar as the Grammy-winning rapper prepares to take the stage for the Super Bowl LIX halftime show: 'Savor the moment.'

Speculation over surprise guests is at a fever pitch. One name is already locked in: longtime collaborator SZA, which is of no surprise since the two announced they'd be going on tour together. This is Kendrick Lamar though so there will be more guests.

Kendrick Lamar and SZA will take the stage at the year's biggest football game -- but there's some controversy.