Gwinnett County will host a line and swing dance marathon from 6 p.m. to midnight Saturday at Best Friend Park Gym, 6224 Jimmy Carter Blvd., Norcross.

The event will feature country, hip-hop and pop music for all levels of dancing. Drinks will be provided, but participants should bring a dish to share. The event is open to those age 15 and up. The cost is $4 per person for Gwinnett residents. To register call 770-417-2212.