Ensemble Theatre of Cincinnati had its biggest box-office hit ever in 2010 with The Marvelous Wonderettes, a musical tale about a foursome of girl singers who save the prom (Act I) and then come back for their 10-year reunion (Act II). If you loved that nostalgic show, full of tunes from the ’60s (and even if you didn’t) you’ll want to head to ETC for another visit with Betty Jean, Cindy Lou, Missy and Suzy (played by the same talented cast that audiences loved a year ago: Sara Mackie, Mia Gentile, Brooke Rucidlo and Denise Devlin). Winter Wonderettes (June 24-July 24) will offer a cool way to escape Cincinnati’s summer heat — the sequel is a regional premiere that features holiday hits from the same ’60s era: “Rockin’ Around the Christmas Tree,” “Santa Baby” and “Jingle Bell Rock.” Tickets: $30 (subscribers); $35 (non-subscribers). Ensemble Theatre of Cincinnati, 1127 Vine St., Over-the-Rhine, www.cincyetc.com. 513-421-3555.