When designer and stylist Michael Barnett’s friend scored him backstage access to a Lenny Kravitz concert in May, Barnett made a bold move. He had designed a T-shirt emblazoned with the words “Denise Huxtable: Crush Since 1985,” and he hoped to get it signed by the rocker.

Denise Huxtable, of course, was “The Cosby Show” character played by Kravitz’s ex-wife, Lisa Bonet. But when Barnett pulled out the T-shirt, he got a surprising response.

“The room fell silent for like five seconds. Then a roar of ‘ohhh’ filled the room,” Barnett tells The Post. “Instead of getting his autograph, he asked me if he could have the shirt.”

Barnett launched the online boutique kiddieconfessionals.com last year with his friend Angela Mack, selling shirts that bear the names of popular TV characters from the ’80s and ’90s. Made in Harlem, the quirky tees are only available online and cost between $45 and $49 in the colors black, gray or white.

With fans like Ludacris and Ty Hunter (Beyoncé’s stylist), the Brooklyn-based duo plans to expand the business with sweatshirts and cashmere sweaters for the colder months ahead. As for new characters?

“We have a lot of ideas, ‘Dynasty’ being one of them,” Barnett says. “Does the name Dominique Deveraux ring a bell?”