La Toya Jackson Calls BS -- I'm NOT Married!

La Toya Jackson could not be clearer -- she's still a single lady, despite reports to the contrary.

Stories surfaced earlier this month ... proclaiming she got hitched to longtime BFF/business partner Jeffre Phillips.

Both La Toya and Jeffre made it clear as they left Katsuya in Hollywood ... they did NOT tie the knot. It looks like they're going the route of Kurt Russell and Goldie Hawn -- sometimes that works better.