Jane Wiedlin, rhythm guitarist-singer of the 80's all-girl band the Go-Go's, will debut her Big Gay Ice Cream Truck theme song on Sunday.

The Big Gay Ice Cream Truck offers a combination of gay activism, campy fun and frozen treats as it prowls the streets of New York City.

Doug Quint and Bryan Petroff launched the truck last summer at Brooklyn's annual gay pride festival.

“I think the political issues that the truck inspires are partly a matter of timing,” Quint told On Top Magazine last summer. “It came at the right moment. This has brought a new dimension to the project and I welcome it.”

“The initial inspiration was pure pipe dream, but then I came to see that there could be a cultural side effect.”

Among the truck's gourmet topping options are Trix Cereal (“It's queer, colorful and youngster-friendly, like us!” Quint said), cayenne pepper, maple syrup and fresh berries.

Wiedlin will be on hand to introduce the never-before-heard theme song, which will also be available for download on iTunes, at a 7PM event at Humphry Slocombe Ice Cream in San Francisco. She'll be joined by Petroff and Quint, who'll also be celebrating his birthday.