At 9:00 p.m. on February 28, students will run in their underwear and costumes from Frat Park, down Green Street, to Foellinger Auditorium on the Quad. 

The run costs $5, and all proceeds go to the Illini 4000 for Cancer, an RSO nonprofit that sends a group of students on a cross country bike ride — this year from NYC to San Francisco — to raise money for cancer research, interview people affected by cancer, and spread awareness about the disease.