Pharrell must have some really good genes. The super producer just celebrated his 40th birthday, but he doesn’t look a day over 25. When he threw his party at Liv in Miami, it's no surprise that many famous guests came out of the woodwork. Of course, Pharrell had to celebrate in style, and the highlight of the night was his sick, custom-made Billionaire Boys Club moto jacket.

Billionaire Boys Club Creative Director Chris Bevans cooked him up something special by reinterpreting the denim BBC Wolfman moto jacket into a luxe, blacked-out leather version. We got exclusive pics to show you all the details. Bevans really pulled out all the stops for this one, with details like nickel hardware, an embossed Spaceman logo, and a quilted lining on the inside. Let's just hope it doesn't take Pharrell another 40 years to break it in.