Beyoncé‘s Renaissance world tour just wrapped up three nights at Inglewood, CA’s SoFi Stadium over Labor Day weekend, the third of which, on Monday (9/4), was Beyoncé’s birthday. Diana Ross made a special appearance for the occasion, singing “Happy Birthday” to her. “This is the legendary Diana Ross!,” Beyoncé said to introduce the iconic vocalist and actress. “There would be no me without you and thank you so much for all of your sacrifice and your beauty and your grace. Thank you for opening doors for me. Thank you so much.”

Later in the show, Beyoncé brought out Kendrick Lamar for the remix of “America Has a Problem,” their first time performing it together. Kendrick had some technical difficulties, but the issue was soon resolved, and you can see attendee-taken video of both guest appearances below.