Knoxville (WVLT) -- Bikers are back at it for charity this weekend.
The third annual Bent Fork Bikefest is a three day festival supporting Saint Jude's Children's Research Hospital.
Its free, and features food, music and several competitions.
"The whole purpose is to get the biker community together, and folks that just enjoy outdoor sports, and have a good time," said Thane Johnson, who heads events and marketing for Knoxville-Harley Davidson.
You also can take a motorcycle demo ride on some of the 2008 models.
Gates closed at 11:00 PM Saturday night and pick back up again on Sunday at noon.
Last year's Bikefest had more than 10,000 visitors.