Beyonce's third and final tour stop in Los Angeles on Monday coincided with her 42nd birthday, and she pulled out all the stops to celebrate. About two hours into the show, music icon Diana Ross appeared on stage to perform her 1976 hit “Love Hangover,” and then led audience in a verse of “Happy Birthday.” “I’m here to celebrate Beyoncé’s birthday,” she announced as an emotional Bey wrapped her arms around the singer. “Thank you so much, you are so amazing,” Bey said afterward. “This is the legendary Diana Ross! 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.” Beyonce also brought out Kendrick Lamar near the end of the show to perform “America Has A Problem.”
