The 42nd annual Penn State Dance Marathon will commence Friday in the Bryce Jordan Center with many Nittany Lion student-athletes among the dancers and committee members helping to raise money and awareness for pediatric cancer patients and their families. Four student-athletes, four cheerleaders and two Lionettes dance team members will be among 707 student dancers in the 46-hour no-sitting, no-sleeping event also known affectionately as THON.