"That's him. I know it's not the bulb. They're flickering. So when that happens that means that he's around," La Toya dished.
So what messages did MJ send his sister? You'll have to watch the finale to find out!
For more from our interview with Tyler and La Toya, watch E! News tonight at 7 and 11 p.m.! And don't miss La Toya's full reading on Wednesday's Hollywood Medium With Tyler Henry!