Got a spare buck this weekend?

Here's an idea: Bring it to the UNC/N.C. State men's basketball game Saturday at the Smith Center and donate it to a good cause.

The UNC Dance Marathon, a student organization that has raised hundreds of thousands of dollars over the years for the UNC Children's Hospital, is hitting up Tar Heel fans this weekend.

Organizers hope each fan will contribute one dollar.

The game's at 2 p.m.

Though Carolina's opponent is NCSU, the Dance Marathon is competing with Duke and its Crazies Who Care, a collection of Duke students that raises money for the Duke Children's Hospital & Health Center and the Emily Krzyzewski Center.

The Duke student group will be raising money Saturday, Feb. 5 when Duke hosts NCSU.

At UNC, the basketball team is behind the effort.

Check out the video below: