Queen Bey posted a pic of herself with the key to the city on her Instagram, along with a sign that read, "Say Hey Mayor Carter."
Fans caught their new mayor's reaction to the accolade at the concert in a video posted to TikTok.
"I'm so excited, I'm so happy to be on this stage," Bey said, wearing yet another new tour look, this one featuring a chunky platform boot.
"You know, today is special because today, I am the mayor," she announced to the cheering crowd in Levi's Stadium, adding a "Thank you!" and a giggle.
"This is my gratitude tour," the temporary Santa Clara mayor continued. "I don't take any of this for granted. I know after 25 years I'm still able to do what I love and it's because of your loyalty, because of your prayers. I'm so grateful for y'all."
The Renaissance World Tour is already Beyoncé's highest grossing tour to date, with a whole month of shows left to add to her ever-expanding coffer.