The cast of "Mad Men" looked better than ever on the red carpet last night, going glam for the final season premiere in Hollywood.

Jon Hamm was photographed with all of Don Draper's women for the event, posing alongside Kiernan Shipka, Jessica Pare, Elisabeth Moss, January Jones and Christina Hendricks.

Little Sally Draper is growing up, isn't she? 14-year-old Shipka is turning into quite the fashionista.

And while Hamm and all the women looked great at the event, there was one star who really made a lasting impression thanks to his bizarre hair 'do.

Vincent Kartheiser showed off his newly buzzed forehead at the event, something he has to do to play the balding Pete Campbell on the AMC series.

While his hair was just starting to grow back at a PaleyFest event last month (left), the actor had to once again take a buzzer to his locks when filming of the final episodes picked up on March 31.

"Most of my friends were like, 'Dude, don’t do that, it might never come back in!' But luckily I have a good head of hair," he's said of the strange cut in the past.

That's definitely dedication to a role!

Check out more photos from the red carpet above -- and see more stars who have messed with their looks for a part.

The premiere of the first half of the final season kicks off April 13 on AMC.