General business. If you can find a general business with concentration in entrepreneurship that’d work well. A bachelor’s degree in your art followed by an MBA would be even better.

Specific majors like accounting, finance, marketing, etc… are for people that plan to get a job in that specialty working for someone else – they aren’t really being taught to run a business. You’ll benefit much more from a general understanding of all of those functions.

I’ve noticed a trend in MBA programs in the last couple years. There are a lot of us “artsy people” following our artistic bachelor’s degree with an MBA for exactly the reason you state in your question. If you plan that route, get a minor in business in your undergraduate degree.

definitely a marketing major

Accounting and Finace would be the best!