Christina Aguilera is liberal mom

Christina Aguilera lets her son 'do everything'.

The singer takes a liberal approach when it comes to parenting four-year-old Max, her son with ex-husband Jordan Bratman.

The blonde bombshell explained that she certainly doesn't believe in having separate toys and fancy dress outfits for boys and girls.

And with a bulging wardrobe full of extravagant stage costumes, Christina doesn't mind her son playing with different looks.

'Max is obsessed with zombies, trucks and video games at the moment! But sometimes he wants to try on one of my dresses. I let him do everything,' she told the German edition of OK! magazine.

Christina added that she lets her son make his own decisions when it comes to his appearance too.

A style chameleon and lover of rainbow hair dye herself, the Your Body star insisted she wouldn't mind if her offspring followed in her footsteps.

'If Max wants to dye his hair blue tomorrow, he could do it," she said.