Is the only solution wigs?

You just need to move the background layer under your hair layer. All your layers will drag and drop in your wardrobe. :)

make sure you move your hair layer on top the background

that maybe why

especially if your using the salon located in the wardrobe

Backgrounds are made to fit around the default avatar. If hair, clothing or anything else extends beyond that, you have to move the layer like said.

Oh. I didn't even know you could move those. xD

Thanks guys. ^^

That's what the actual background looks like :)