Lyric Stage opens its 31st season with Forever Plaid: Plaid Tidings, a holiday classic by Stewart Ross.

At first, Francis, Jinx, Smudge, and Sparky aren't sure why they've returned to Earth for another posthumous performance, but a phone call from the heavenly Rosemary Clooney lets them know that they're needed to put a little harmony into a discordant world.

Sprinkled among the Christmas offerings are audience favorites, like their riotous three-minute-and-eleven-second version of The Ed Sullivan Show – this time, featuring the Rockettes, the Chipmunks, and The Vienna Boys Choir, as well as a Plaid Caribbean Christmas that puts the "Day-O" in Excelsis.