A protester practices yoga next to a tent as she demonstrates during Occupy Oakland's general strike. (Justin Sullivan/GETTY IMAGES)

Listen to Sobule’s song after the jump.

Sobule, best known for her 1990s hits like “Supermodel” and “I Kissed a Girl” — a different song than the Katy Perry hit — said she imagined a “hobo town filled with destitute artists, students and working-class stiffs banding together.” She wrote the song with her songwriting partner, Robin Eaton.

Music has become a bigger part of Occupy in recent weeks, with musicians such as David Crosby and Graham Nash, Jeff Magnum (of Neutral Milk Hotel), and Gogol Bordello performing at Occupy encampments. David Montgomery wrote about Occupy protest songs last month:

The first singles on the soundtrack of the revolution are being written on the fly and downloaded as we speak. Every songwriter secretly hopes to compose an anthem worthy of Dylan, Odetta, Chuck D, the Clash — pick your idol — but fans and critics will be the judge of that.

For now, what’s interesting about this new movement music is the role it’s playing in the organizing and how it identifies deeper streams that seem to link disparate cultures of rebellion in the United States and other parts of the world.

Protest songs have changed since their heyday in the ’60s, Post music critic Chris Richards says. They’re not as mainstream and don’t often receive radio play. “If tomorrow’s protest music becomes more direct, it will still have to overcome colossal odds. In a digital era, instead of rallying around music, a new generation is rallying around social media,” he wrote.

View Photo Gallery: A history of political activism in music, from Woody Guthrie to Sam Cooke and Lady Gaga.