Tom Petty delighted fans at London’s Hyde Park last weekend when he invited Stevie Nicks to join him on stage for a performance of “Stop Draggin’ My Heart Around.” The pair originally collaborated on the song for Nicks’ debut solo album in 1981.

“You know that Tom Petty is my favorite rock star!” said Nicks.

Check out the fan-shot video below (skip to 5:30 for Stevie Nicks’ entrance).

Petty’s show was part of the British Summer Time festival. Nicks performed earlier in the evening.

Stevie Nicks and Tom Petty in the original music video: