It’s no secret that Kendrick Lamar is performing at halftime during Monday’s College Football Playoff National Championship – but he’s also inviting fans to join him for a free rehearsal concert on Friday.

The Grammy-nominated rapper will perform at Centennial Olympic Park – the same location as his Monday set - at 8:30 p.m. Friday.

Fans must be 18 and older and register for tickets at this link.

No cell phones, cameras or electronic devices of any kind will be allowed; anyone found with an electronic device will be turned away.