updated 04/06/2013 AT 3:00 PM ET
•originally published 04/06/2013 AT 3:30 PM ET
Apparently, age is nothing but a number for Pharrell Williams, who surprisingly turned the big 4-0 on Friday.
The youthful-looking producer celebrated the momentous occasion at Miami Beach’s Fontainebleau Hotel’s LIV nightclub with a few of his most famous pals, including Jennifer Hudson and recently recovered Lil Wayne.
One person who went unnoticed during the festivities was Miley Cyrus, who donned a black, skin-revealing crop top and what appeared to be long, black mesh shorts. Of the apparel choice, she Tweeted, “Girl in boys clothing.”
Cyrus, 20, whose outfit was completed with a red-lipped pout, also Tweeted, “So many peeps I love birrrfday is today! Gotta celllllebratttteee.”