BATH —The Studio Theatre of Bath will present “25 Years of Rock: Billboard Hits ’55-’79,” with Sonny and Cher, aka Vince Shatto and April Purinton, hosting the April 21 event.

Fifteen singers and a seven-piece band will perform such chart-topping favorites as “Johnny B. Goode” by Chuck Berry, “Long Cool Woman” by the Hollies, “Heatwave” by Martha and the Vandellas, and “Dream On” by Aerosmith.

The event, appropriate for all ages, will also feature state-of-the-art sound equipment and a multimedia presentation.

The theater fundraiser will begin at 7 p.m. at Harmony Hall (a BYOB establishment). For tickets, $15, call (207) 200-4STB or visit www.studiotheatreofbath.com. Pizza, hot dogs, hamburgers and soft drinks will be available.