Jessica Simpson debuted a brand-new hair color as made a special appearance on the season 23 finale of 'American Idol' on May ...

The pop star, 43, rocked freshly dyed dirty blonde tresses ... in her highlights," she explains. "It delivers a rich, shiny payoff, and a silky, polished finish that leaves hair looking refreshed ...

If you need a visual, think of dirty ... blonde hair, your colorist will likely darken your hair to a light brunette (which may involve bleaching your strands first), then add the blonde ...

Traditionally, summer hair trends have involved bright blonde hair colours (think fine sun-kissed highlights), effortless lived-in curls ... lifted with richer, "dirty" tones to create a perfectly ...

Using a subtle balayage technique, this brown hue combines warm blonde and brown ... scattering super fine micro-highlights throughout the mid-lengths and ends of the hair, using warm, gooey ...

This Domme is a dancer on the side, she’s into submission if the vibe is right, and she’s got cute little feet she occasionally highlights ... puts the dirty in her dirty blonde hair.

Jessica Simpson debuted a fresh, "desert sunset blonde" hair color for her "American Idol" appearance, crafted by Rita Hazan. The new look, a departure from her signature buttery blonde ...

Perhaps to mark the beginning of her new country era, Jessica traded in her bright blonde for a more subdued dirty blonde look ... brassiness and give Jessica's hair a glossy finish.