NU dance-a-thon benefiting Starlight Children's Foundation

EVANSTON, Ill. -- Hundreds of college students at Northwestern University are dancing the weekend away for a good cause.

The university's annual dance marathon began Friday night and ends at 1 a.m. Sunday, after students have danced for 30 hours straight.

The money raised from the dance-a-thon will benefit the Starlight Children's Foundation to help build pediatric treatment rooms and playrooms.