It’s a rock star thing. Just about any red-blooded American (at least those born after Bing and Dino, and even some of them) have a center-stage, live-in-concert fantasy.

Whatever beat rocks your world – pop, R&B, heavy metal, Lilith fare – doesn’t matter.

It’s what Gap execs were no doubt counting on when they offered up crooner Joss Stone in their latest ad campaign.

Clad in tight white denim, Stone looks as though she’s taking part in an impromptu, just-jumped-up-in-front-of-the-microphone session at some after-hours spot.

“There’s definitely a rock-star edge to white denim,” says Gap’s Erica Archambault. “Pair it with a sleek metallic top for a hip but elegant nighttime look, or dress it down for day wearing capris or cutoffs.” Denim is – if you’ll permit us – white hot this summer.

That’s right, just because black is slimming doesn’t (necessarily) mean the opposite dictum is true.

Granted, white “draws the eye to a specific area,” admits Lee Jeans trend analyst Patricia McCune. “So use it to focus attention on your positives,” she suggests.

Designers assist by serving up more than jeans. Capris, shorts, skirts and a variety of jackets can be your ticket to the trend.

White used to be saddled with all those lame rules about when – and only when – you could wear it. (Not a nanosecond past Labor Day, as a well-meaning mother probably told you.)

Hello?! Talk about arbitrary – pink, purple, yellow or green aren’t burdened with such restrictions. “Those days are gone,” says Archambault.