Thank you for your question. I look forward to working with you to provide you the information you are seeking for educational purposes only.
If your record label is not making anything and has no income, then at this point there is no need for another LLC. You can continue under the LLC you have to operate the shoe store online and you can have a DBA under the LLC for that store. If the record company does not ever make money then there is never a need to open any new LLC.
As far as taxes, you are liable to pay sales tax on any sales you make in WI. As far as other states, it is up to the person receiving the merchandise to pay sales taxes in their state (of course most do not ever do so) but it is not up to you to pay the sales tax in those states for the customers.
If the record company begins making money, then at that time you can form a new LLC for the shoe company and move the DBA under them or move the record company to the new LLC name, your choice.
I truly aim to please you as a customer, but please keep in mind that I do not know what you already know or don't know, or with what you need help, unless you tell me. Please consider that I am answering the question or question that is posed in your posting based upon my reading of your post and sometimes misunderstandings can occur. If I did not answer the question you thought you were asking, please respond with the specific question you wanted answered.
Kindly remember the ONLY WAY experts receive any credit at all for spending time with customers is if you click on OK, GOOD or EXCELLENT SERVICE even though you have made a deposit or are a subscription customer. YOU MUST COMPLETE THE RATING FOR THE EXPERT TO RECEIVE ANY CREDIT, if not the site keeps your money on deposit.
Also remember, sometimes the law does not support what we want it to support, but that is not the fault of the person answering the question, so please be courteous.
This is NOT the practice of law nor is it legal advice to you, it is merely educational information for you to use to seek out a licensed attorney in your state to get actual legal advice from them. Please use sites such as http://www.martindale.com or http://www.lexmundi.com or http://www.hg.org to find a local attorney to get actual legal advice in all matters.