Como dizer "Cachê artístico" em inglês

Hi everyone,

I was wondering if there would be any expression for "cachê artístico" in English. In Portuguese, "cachê artístico" refers to the payment of any performance by an artist. Even though I did some search on the net, the only reference I found related to "cache" has to do with computers http://www.thefreedictionary.com/cache

Thanks in advance