Leominster Curves participates in setting the world record for the largest 25th birthday party with Curves International.Posted on December 6th/in Member News /by northcentralmassLeominster Curves participates in setting the world record for the largest 25th birthday party with Curves International. Over 69,000 members, staff and guests attended Curves parties all over the world on September 28, 2017. We did it. Happy Birthday Curves !