The song of the night at Wednesday's "Hops & Harmony" at Mechanics Hall is "I Want Candy" by Bow Wow Wow. Now that you can't get the song of out of your head, you'll have no choice but show up at the monthly event that features audience participation and an opportunity to unwind with friends and make new ones. The Drive A Capella quartet will help people learn to sing the song in three parts — low, medium and high.

What: "Hops & Harmony"
When: 6:30 p.m. Oct. 17
Where: Mechanics Hall, 321 Main St., Worcester
How Much: $10 general admission; $5 group of four tickets. www.mechanicshall.org