Maybe we should blame the Girl with the Dragon Tattoo, or we could point the finger at Anne Hathaway in Batman.
Whoever's to blame, we're not complaining: leather trousers are officially So Hot Right Now, as proven by the expertly honed pins of some of our favourite celebrities.
We've flagged the trend up in this month's issue of ELLE. The lessons to learn?
1. Don't just stick to black - as Allison Mosshart shows, a shade such as bottle green can be just as rock n' roll.
2. Balance out the silhouette with a looser cut on top.
3. A tailored blazer is the perfect topper.
4. If you really want to be ahead in the style stakes, choose a looser cut like Rita Ora. The turned up hems are the perfect finishing touch.
Kate Beckinsale goes for a monochrome look with a pair of leatheer trousers and white blazer at the LA Comic Con, July 2012
Jennifer Lopez celebrates her birthday in a pair of leather trousers and platform heels, July 2012
Karolina Kurkova exudes off-duty model stylein a pair of hi tops, leather trousers and an army jacket
Alison Mosshart highlights her achingly cool style in a pair of green leather trousers
Former ELLE over star Georgia May Jagger shows off her model figure in a pair of leather trousers
Charlize Theron leaves Claridge's in an elegnat mix of leaher trousers, over-sized shirt and statement heels
Katie Holmes wears an elegant cream blazer and leather trousers while out in New York, July 2012