Pilobolus in Washington will hold its seventh annual ball June 25 at 6:30 p.m. at a private home in Washington.

The ball is expected to be the largest one to date and will commemorate the dance company's 40th anniversary.

Nancy and John Novogrod, John Truez and Richard Lambertseon, Philip and Lisa Gorrivan, and Matthew Lynn and Graham Klemm, are co-chairmen.

The event will feature dinner, an open bar, a silent auction, two sneak peaks of premiers with two new collaborators, the popular rock band OK Go and the MIT Distributed Robotics Department, as well as two classics, "Shizen" and "Untitled," a Victorian "Alice in Wonderland"-like fantasy.

Tickets to the ball are $250 and may be purchased by visiting www.pilobolus.org or by calling Kris MacDonald at 860868-0538, extension 16 or Allison Prouty at 917-957-2285.

Two weeks after the ball, Pilobilus will open for its annual New York City season at the Joyce Theater in New York City.

The company will perform July 11 through Aug. 6.

Tickets for the shows start at $10 and may be purchased by calling 212-242-0800 or visiting joyce.org.

For more information about tour dates, visit www.pilobolus.org.