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       White House press secretary Jen Psaki, right, and teen pop star Olivia Rodrigo a the daily briefing at the White House in Washington on July 14, 2021. Rodrigo is at the White House to film a video to promote vaccines.

       Susan Walsh/The Associated Press

       Pop star Olivia Rodrigo, whose album “Sour” is No. 1 on the charts, took to the podium at the White House on Wednesday to encourage young people to get vaccinated against COVID-19.

       The 18-year-old singer and actress, wearing a vintage plaid Chanel suit and towering white platform shoes with black ankle socks, made a surprise appearance in the press briefing room.

       Making a reference to Rodrigo’s song “Drivers License,” press secretary Jen Psaki introduced her by saying she “traversed red lights and stop signs to see us.”

       The White House enlisted Rodrigo, who has millions of followers on social media, to help boost lagging vaccination rates among youth. “It’s important to have conversations with friends and family members encouraging all communities to get vaccinated,” she told reporters.

       The “good for u” singer had on her agenda for Wednesday a meeting with U.S. President Joe Biden and infectious disease expert Dr. Anthony Fauci, as well as a session to record videos promoting vaccination.

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