It’s completely understandable if you don’t want to take requests from the audience, but that doesn’t mean you should stick strictly to one genre or, heaven forbid, one artist. Feel free to mix it up as your audience will have varying tastes. That way, you’re sure to please everyone with at least one song. Variety is the key to a great and entertaining show.
Playing the same genre or the same artist too much can make your show seem monotonous, rather than interesting. Don’t fall into this trap and ruin your reputation.