Dance to the sounds of the 7 Once band while supportingThe Leukemia & Lymphoma Society whose goal is to eradicate leukemia, lymphoma, Hodgkin's disease, and myeloma, and improve the quality of life of patients and their families. Enjoy cocktails and appetizers at this black tie optional soirée all for a great cause. Omar Shrine Ballroom, 176 Patriots Point Street, Mount Pleasant. Saturday, 6:30pm. $125. (843) 881-8176, www.lls.org