Local Jazzercises will help energize the crowd at the Valentines Date Night classes 4:30, Feb. 12 when they exercise together with their husbands, boyfriends, co-workers, friends, sons or daughters. It’s a chance to work the largest muscle in the body bringing hearts together while doing kickboxing, strength training and more. Jazzercise is the largest dance-fitness program in the world; join in at Lake Hopatcong and Succasunna as they team-teach this Valentines Date Night Classes. The Valentines Date Night classes, which runs from 4:30 to 5:30 on Feb. 12, will also feature popular songs and artist as well as door prizes and giveaway’s, win an iPod docking station. Babysitting will be available.