I use one called Multiplication Unplugged. I think it is Sara Jordan publishing, but I can't remember for sure who puts it out, but I can look on Tuesday. The kids do really well with it. It sequence counts each number to a different toon. They are a little corny, but the kids really remember them. The 4's and 7's are really catchy toons. I have kids in middle school that can still sing them to me 4-5 years later and they also teach their younger siblings.
I have tried Multiplication Rock and Multiplication Rap and the Multiplicaiton Unplugged is MUCH better.
Those are my multiplication songs that Risa posted. I have had great success with them, and they're free! You just have to be willing to sing with your students. Mine really like them. I'll be starting the kids on them this week.