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All vocal, all the time

Even if you’re not a fan of the numerous, often-cloying talent shows that have come to dominate the airwaves over the past decade or so, a group that appeared on one of them is not only really good, but awfully cute — Pentatonix. Hailing from Arlington, Texas, the four men and one woman who comprise the group won Season 3 of NBC’s “The Sing-Off,” and deservedly so given their penchant for tight harmonies and fun takes on popular tunes. The a capella group’s YouTube video for “Evolution of Music,” which squeezes several centuries’ worth of music into four minutes, has been viewed more than 5 million times, and Pentatonix has been selling out venues nationwide.

Pentatonix, 8 p.m. Sunday, May 5, Crystal Ballroom, 1332 W. Burnside St. $25 in advance, $30 day of show. All ages. Info: 503-225-0047, www.mcmenamins.com