Guess who's joining Kendrick Lamar on the Super Bowl halftime stage? None other than multi-Grammy winner singer SZA.

SZA is Lamar's former Top Dawg Entertainment ... including "Gloria" and "Luther," which also features sampled vocals from Luther Vandross and Cheryl Lynn through "If This World Were Mine." ...

SZA is Lamar’s former Top Dawg Entertainment ... and “Luther,” which also features sampled vocals from Luther Vandross and Cheryl Lynn through “If This World Were Mine.” ...