Whose Tuxedoed, Teenage Celeb Kid Is This?

Famous dad brings his rarely seen son to the Iron Man 2 premiere...can you guess who this is?

His famous father is very recognizable, but we don't see this teenage son on the Hollywood scene very often.

In fact, his legendary father even has his own reality series, but we've never seen his kid on the show. (Not that the setting would be suitable for children!)

But it seems last night was the exception as the 19-year-old accompanied his dad and girlfriend to the premiere of Iron Man 2. And who is this mystery man?

 

 

 

 

 

 

 

 

It's Hugh Hefner's son Cooper, with second wife Kimberley Conrad. (The former couple has another son, Marston; plus, Hef's got two older children from a previous marriage.)

And naturally, both Hefners brought their girlfriends (Sam, far left and Crystal, far right) along for their big night out.

Yesterday was a big day for Hef. In addition to this unusual father-son date night—the Playboy mogul was so excited about the family outing he twittered about it beforehand—he also donated a ton of money to save the Hollywood sign.