How do you make eyeshadow not fall down?

I tried putting on eyeshadow with this need brush I got and it falss down under my eyeliner line and its really annoying! like when i use my finger to put on the eyeshadow i dont have that problem, just when Im using the brush. Also, my eyeshadows have a bit of sparkle to it ive mized quite a few so now theyve all become sparkly loll!! Help?!