MARYSVILLE — “Captain Smartypants” and “Sensible Shoes,” known by their followers as “Pants and Shoes,” will perform Oct. 17 at 8 p.m. in the Marysville Evergreen Coffeehouse, with proceeds from the $10-per-person suggested donation door price going to benefit the Marysville Evergreen Unitarian Universalist Fellowship and the Marysville Community Food Bank.

The two performance groups promise to offer an evening of comedy and vocal harmony, covering country, pop and rock.

The Captain Smartypants ensemble tours the Pacific Northwest as ambassadors of the Seattle Men’s Chorus, and has entertained audiences from Washington, D.C., to San Francisco. Their last three shows included “Trousers of Terror,” “PowerPants!” and “Cirque du Slaque.” They’ve performed with Ann Wilson, Melissa Manchester, Megan Mullally, Kristin Chenoweth and Lea Delaria, and served as Seattle’s warm-up act for Margaret Cho when she filmed “The Notorious C.H.O.” in 2002.

The link to Captain Smartypants’ performance of “Kislev Cowboys,” a.k.a. “Brokeback Dreidel,” has received more than 500,000 hits on YouTube, thanks in part to the San Diego Jewish World Web site, and was featured on NPR’s “Hearing Voices” in November of 2008. In 2004, they toured with their CD “UnderCover.” The ensemble has produced or been featured on four recordings.

You can log onto the group’s Web site at www.flyinghouse.org/captainsmartypants.

The group’s female counterpart, Sensible Shoes, is an ensemble of the Seattle Women’s Chorus. They’re a pop and vocal jazz group performing in the tradition of groups like Captain Smartypants and the Emerald City Volunteers.