Front Row at Stella McCartney

Bono and Sir Paul McCartney took in the show at the Palais Garnier in Paris.

DO THE RIGHT THING: Among the seat cards in the front row of Stella McCartney’s show in Paris on Monday morning was one “Paul Hewson” — though the world at large knows him better as Bono. Next to the Irish pop star was a place reserved for “Paul” (that would be Sir Paul McCartney, the father of the designer).

Suzy Menkes zipped over to snap a picture of the two on her disposable camera, scrambling back to her seat just as the first model hit the catwalk. Bono was in town for a party celebrating the collaboration between Edun, the socially conscious clothing line he launched with his wife Ali Hewson, and denim giant Diesel.

Though Edun is 49 percent owned by LVMH Moët Hennessy Louis Vuitton, the couple still follows Stella McCartney, whose brand belongs to rival conglomerate PPR. McCartney refuses to use leather and fur in her collections, and Bono said he hoped socially conscious design would eventually become commonplace.

“I think right now it’s luxurious, but I would love it to become more mainstream. But right now, it seems like meaning is the new luxury, in a funny way,” he mused.

The show at the 19th-century Palais Garnier opera house also drew Jessica Alba, Nicole Richie, Marianne Faithfull, Elettra Wiedemann, Natalia Vodianova and Dhani Harrison, the son of the late George Harrison.

Twiggy said she was flying to Florida in two weeks to promote her Twiggy London clothing and accessories line on HSN, which is based in Saint Petersburg. The model also designs a range for British high-street chain Marks & Spencer, which celebrates its first anniversary in April.

“Before I was discovered at the tender age of 16, I wanted to be a designer,” she revealed. “I was going to go to fashion school and I was going to do my training because I make clothes. I mean, that’s my hobby. I love sewing, I love knitting. I knit like a fiend.”