Sersiously Over worked

One of the cool things about my job is that we sponser community events. The Summer Celebration is coming up, and we will be down there every night there are concerts. It's pretty exciting and it will be a great way to get our name out in the community.
Here is the bad part. Because I'm the only 'employee' in Muskegon County, I'll have to work both at the store and at the concert. They are trying to get other people to cover the nights of the concert, but I'm required to work 4 of them. What this means, is that it turns my 11 hour days into 15 or more hour days. This two week festival will make it so I'll work 80 hours one week, and 74 the next.
Starting June 29th, send some sleep and energy my way, some prayers too if ya think about it. I'll need any help I can get.