Caitlyn Jenner Caitlyn Jenner

Fans at a Culture Club concert in Los Angeles were treated to a special appearance from a surprise guest: Caitlyn Jenner.

Jenner, whose docuseries I Am Cait premieres Sunday on E!, came on stage to introduce Boy George at the Greek Theater Friday night.

"Caitlyn Jenner in the house for her first Boy George concert!" she said after being greeted by a standing ovation. "Enough about me. Thank you for being here tonight. ... Let's get it going!"

Jenner was attending the concert with her friend, transgender actress Candis Cayne, with whom she was seen dancing later in the night.

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Boy George told Entertainment Tonight of Jenner's appearance: "I expected a standing ovation for her and I wasn't disappointed. We need to celebrate the kinds of changes that are happening."

Watch Jenner's introduction here: