The Band "The Colorfast Tattoo" Signs a Contract to Sing

Essay

The band "The Colorfast Tattoo" signs a contract to sing at the Hornet Theatre. The band and the owner agree that they will include a liquidated damage clause in the contract. Let's really make the  penalty stiff: so whoever breaches has to pay the other guy one hundred grand." This sum was far above either "The Colorfast Tattoo's" usual payment or the profits the promoter expected from the performance. Is this clause valid? Explain your answer​