You're cordially invited to work out at this exclusive studio.

Celebrity trainer and fitness expert David Kirsch (the man behind the sizzling bodies of Heidi Klum, Liv Tyler and Anne Hathaway) is celebrating the launch of new group classes at his exclusive Madison Square Club...and you're invited.

Who: You. For the first time ever, Kirsch is opening his private training gym to non-members.

What: Sculpt a svelte bod with any of the four classes, led by MSC's elite trainers, including the boot camp-style "Kick Butt" and the body sculpting "Shape Shifter." Start toning your glutes, shoulders and core now with this signature exercise from Kirsch's Shape Shifter class.

When: Launching next week, the 45-minute, calorie-burning group classes will be offered on Tuesdays and Thursdays at 1:30PM and 2:30PM. See the schedule here.

RSVP: Each session is $30. Spots are limited in the intimate classes (10 people, max)--sign up in advance here, or call the number below.

*Your best sweat-absorbing attire is requested.

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