What is a reasonable cost for an artist with only 1 hit?

Depends on how long ago they had that hit, as well as what they are doing now. This question is a bit too broad. For example, an artist might have had one big radio hit, but still have a great following that they release music too. I’m going to assume that you are referring to artists that maybe were popular in the 90s or 2000s and had a 1 hit wonder. This can vary greatly as well, and what genre that you are interested in, is important too. I’ll assume you are interested in hip-hop.

Lets say a hip-hop artist from the 2000s that had a one hit wonder, and hasn’t really done much since. Typically these types of artists are going to be 10k and under.

Hope that answers your question.