30 Friday, April 28, 1989 / University Daily Kansan What are you doing tonight? Dance the night away at the Mac Challenge Dance Marathon, featuring music by ADJ. Walk-ins welcome, $5.00/couple, $3.00/individual. 8 p.m. 8 a.m. Burge Union 864-5697 Ballroom, Kansas Union *All proceeds go to the Margin of Excellence, KU Women's Volleyball.