I'm hosting a charitybiker event through my work and need a well known and affordable biker band. Who to hire?

I don't know much about the biker community and I am helping with a motorcycle rally for charity. I need a band that will bring in bikers for a concert. Any suggestions on what bands to contact? We are having a 3 day motorcycle rally so there is room for more than one band. This will be in West Virginia. Any ideas are appreciated. Thanks!