CHRISTINA AGUILERA has gone back to her Dirrty roots to pose in PVC.

The singer flaunts her fab physique in a figure-hugging pencil skirt and matching bra to promote comeback track Not Myself Tonight.

Recent comparisons with LADY GAGA have seemed unfair as Christina reinvents herself post-motherhood.

But after donning an IDENTICAL outfit to one Lady G wore last summer, it does look a little suspicious.

What next, a beret made of her own hair?

Credit where it's due though, Christina does look sensational as she shows off her trim body.

She may be tiny, but at least she has held onto her curves with an ample chest and womanly hips.