BOULDER, Colo. - etown has canceled an upcoming concert by alternative folk and rock singer Michelle Shocked after she allegedly made anti-gay comments at a concert in San Francisco.

"I live in fear that the world will be destroyed if gays are allowed to marry," Shocked said according to the Christian Science Monitor.

The venue's San Francisco Director of Marketing Lisa Bautista told The Associated Press that Shocked had just begun her second set Sunday night when she made comments that included the slur.

The venue muted her microphone, dimmed the lights and announced the show was over.

While Shocked apparently has not said anything directly about the controversy, she did respond to a fan on Twitter, "Just my usual troublemaking, at the expense of dear friends who trust me, even when I appear to be gay-bashing."

Shocked, whose real name is Karen Michelle Johnston, calls herself  "the most sophisticated hillbilly you ever met, "on Twitter.

Shocked was scheduled to play Boulder's etown concert venue in May.

"In light of recent developments, eTown must cancel the upcoming concert with Michelle Shocked, originally scheduled to take place in May at eTown Hall," etown wrote on its Facebook page. "From the very beginning, our goal as an organization has been to foster a spirit of community and inclusiveness in all that we do - whether it's a radio taping, special event, concert or social cause we support. We are deeply saddened by today's news, and are pulling the plug on this event."

Most of etown's fans on Facebook supported the decision.