Can we sue for breach of a verbal contract?

Question Details:

I entered into a contract with a bar owner to promote the bar and to run his Saturday nights. This was witnessed by several people including his staff and friends. After 4 weeks of promoting, hiring entertainers, designing and printing up fliers, hiring a DJ and talking to the owner on several occasions, he decided to close the bar on the day of our first show. He told us that TBAC shut him down, but this wasn't true. We contacted him and he then put a womenon the phone, his supposed coordinator.  She informed us that the reason we couldn't do the show is because she didn't OK it. Previously there was no mention of this lady. We have tried to contact him on several occasion and he will not speak to us. We are expecting some type of reimbursement for money spent and lost in this venture. Important Notice