Apply a little bit of bronzer/contour powder or even eyeshadow on to the scalp so that it blends with the rest of your makeup.
The bronzing/contour powder will blend with the rest of your makeup so that your scalp does not look so pale compare to the rest of your face and body.
This will help to make the final makeup look complete especially in pictures and videos.
This tip does not only work for your scalp - It's also a great tip to add a bit of bronzing powder to your ears as well - especially when your ears are showing.
(and now that you know about this trick - you can't unsee it.)